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Gossamer Gear Mariposa Plus Backpack REVIEW

Removable carbon fiber stays make it one of the lightest and most versatile internal frame backpacks on the market.


Overall Rating: Recommended

The Gossamer Gear Mariposa Plus is a highly refined and highly versatile backpack. If an ultralight backpacker wanted to purchase just one backpack, this would be it. With the stays in, this 20 ounce wonder will carry a 20 to 30 pound load with remarkable comfort, and its feature set is focused on what an ultralight backpacker wants and needs.

The primary reason the pack is not rated "Highly Recommended" is that the pack’s straight carbon fiber stays are not bendable to allow an anatomical fit to the user’s back. Switching to curved flat stays would create a more comfortable fit, and including shapeable stays would allow the user to create a custom fit. Also, I would like to see Gossamer Gear offer optional lightweight hipbelt and sternum strap pockets to further refine the pack for on-trail convenience. Finally, I feel that the pockets in the shoulder straps and hipbelt to insert socks for padding are getting a bit outdated; the provided foam pads weigh just 0.9 ounce total and can easily be sewn in to eliminate the Velcro closures.

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by Will Rietveld |

Gossamer Gear Mariposa Plus Backpack REVIEW - 1
The Mariposa Plus on a 6-day backpack in the Wind River Range, Wyoming.


Backpacking Light reviewed the original Gossamer Gear Mariposa backack in 2004. We were delighted with its light weight and load-carrying capacity, but noted that it needed a few refinements. The Mariposa has since been tweaked to near perfection. The new Mariposa Plus is essentially identical except it has a removable wraparound hipbelt and uses more durable fabrics. Therefore, my review of the Mariposa Plus, contained herein, pertains to both packs.

What’s Good

  • Removable stays, sternum strap, and hipbelt
  • Highly versatile; can be used as either a frameless or internal frame backpack
  • Very high volume to weight ratio
  • Very high carry load to pack weight ratio
  • Durable fabrics
  • Large capacity front and side mesh pockets
  • Comfortably carries 20 to 30 pound loads

What’s Not So Good

  • No hipbelt pockets
  • Stays cannot be shaped for a custom fit



2007 Gossamer Gear Mariposa Plus


Internal frame or frameless, top loading, drawcord closure with top compression strap


4200 ci (69 L) total; main body 2900 ci, pockets 500 ci, extension collar 800 ci (48 + 8 + 13 L)


1 lb 4.5 oz (581 g) measured weight with stays and supplied padding; pack with hipbelt 18.7 oz (530 g), stays 0.9 oz (26 g), shoulder strap padding 0.6 oz (17 g), hipbelt padding 0.3 oz (9 g); manufacturer’s specification 1 lb 4.1 oz (570 g) with stays

  Sizes Available

S, M, L (size L tested)

  Torso Fit Range

S fits 12-16 in (30-40 cm), M fits 16-20 in (40-51 cm), L fits (20-24 in (51-61 cm)


Body is 70d 2.2 oz/yd2 (75 g/m2) polyurethane-coated ripstop nylon, stress and abrasion areas are reinforced with 200d 4 oz/yd2 (118 g/m2) polyurethane coated ripstop nylon, backpanel is 30d 1.3 oz/yd2 (44 g/m2) silnylon


Durable fabrics, wide shoulder straps, removable padding in shoulder straps and hipbelt, removable hipbelt, removable carbon fiber stays, 11 inch extension collar, drawcord closure, Y-strap top compression, backpanel sleeping pad sleeve, one large front and three large side mesh pockets, front or side bungee attachment/compression system, interior hydration sleeve with two hose ports, one ice axe loop, removable sternum strap with whistle, three hipbelt lengths available, haul loop

  Volume To Weight Ratio

204.9 ci/oz with stays (based on 4200 ci and measured weight of 20.5 oz), 214.4 without stays (based on 4200 ci and measured weight of 19.6 oz)

  Comfortable Load Carrying Capacity

30 lb estimated comfortable load for an average person carrying the pack (with stays) all day

  Carry Load to Pack Weight Ratio

23.4 with stays (based on 30 lb and a measured weight of 1.28 lb)


$150 US




The main differences between the standard Mariposa and the Mariposa Plus are the more durable fabric and removable hipbelt of the Plus version; the pack volume and other features are the same. The Plus is made of 2.2 oz/yd2 polyurethane-coated ripstop nylon, compared to the standard Mariposa’s 1.3 oz/yd2 silnylon. The heavier fabric and removable hipbelt add about 3 ounces, which is a small weight penalty for the durability and utility gained. However, I have used the standard Mariposa, and find its silnylon body adequately durable for my needs, so the choice ultimately depends on the intended use.

The Mariposa (and Mariposa Plus) have received some useful refinements since the original version, with minimal weight gain:

  • Taller mesh pockets
  • Drawcord closure
  • Three pack sizes available
  • Removable hipbelt available in three sizes (Mariposa Plus only)
  • Internal map pocket
  • Lower and more adjustable sternum strap
  • More durable stay sleeves
  • Hydration sleeve with two hose ports

The following photo gallery will help familiarize you with the pack:

Gossamer Gear Mariposa Plus Backpack REVIEW - 2
Views of the Gossamer Gear Mariposa Plus. The frontpanel (top left) has a large bellowed mesh pocket plus loops to add a bungee attachment/compression system. The backpanel (top right) has a sleeve to allow the use of a sleeping pad for padding and weight transfer (the sternum strap pocket and camera case are my additions). The right side (bottom left) has two mesh pockets, and the left side (bottom right has one tall mesh pocket.

Frame and Suspension

The frame is the lightest to be found anywhere - two carbon fiber rods weighing 0.9 ounce. They have rounded aluminum caps to prevent them from puncturing the fabric. Although they are very light, they are straight and are not bendable to fit the curvature of the user’s back. More on this in the Field Testing section.

Gossamer Gear Mariposa Plus Backpack REVIEW - 3
The Mariposa Plus’s frame consists of two straight carbon fiber rods that slip into durable sleeves inside the pack. The two stays weigh just 0.9 ounce.

I really love the pack’s wide shoulder straps and hipbelt. They’re 3.5 inches wide and have openings (with Velcro closures) to insert either articles of clothing (e.g. socks) or the provided 3-inch wide, ½-inch thick closed-cell pads. Since the shoulder strap pads weigh just 0.6-ounce and the hipbelt pads weigh 0.3 ounce (that’s a total of 0.9 ounce for all four pads), it might make sense to simply sew in the pads and eliminate the weight of the Velcro closures.

The pack does not have load lifter straps or hipbelt stabilizer straps.

Gossamer Gear Mariposa Plus Backpack REVIEW - 4
The suspension consists of 3.5-inch wide shoulder straps (top left) with 3D wicking mesh on the underside, a sleeping pad inserted into a pad sleeve (top right) to serve as a padded backpanel and pack stiffener, and a 3.5-inch wide removable hipbelt (bottom) with 3D spacer mesh on the underside.

Features and Utility

The Mariposa Plus (and Mariposa) has an essential set of features to meet the needs of a lightweight or ultralight backpacker. For starters, several components (hipbelt, stays, padding, and sternum strap) are removable, so the pack can be stripped down to a frameless backpack weighing about 14 ounces. Like many ultralight backpacks, the outside of the pack is covered with three large mesh pockets (500 cubic inches total) capable of holding a lot of gear and keeping it readily accessible on the trail. The lower right mesh pocket is designed to make a water bottle reachable without taking the pack off.

Conspicuously missing are hipbelt pockets, and I highly recommend that Gossamer Gear design some optional lightweight pockets, perhaps in different sizes, that can easily be slipped on the hipbelt. Further, an optional sternum strap pocket would also be a desirable option for convenience on the trail. To accommodate it, the sternum strap would need to connect at one side rather than in the middle.

Although the Gossamer Gear website states that this pack has an inside "small map/permit/sundries pocket", my sample pack did not have it. Such a pocket would be a nice addition, and worth the miniscule weight. A length of elastic cord and cordlocks are provided (0.4 ounce) to create a bungee attachment/compression system either on the front of the pack or the two sides, using loops sewn into the seams.

The pack body is not large enough to hold a bear canister, but the Y-strap on top is designed to hold a canister carried on top of the pack. I don’t have a bear canister, so I was not able to test that feature. In normal use without a bear canister, the Y-strap is a little cumbersome to use compared to a single strap because of its extra length and tendency to get twists in it.

Gossamer Gear Mariposa Plus Backpack REVIEW - 5
The Mariposa Plus has an internal hydration sleeve and two hose ports (left). Also note the sleeves that hold the carbon fiber stays. The pack’s roll-down closure is secured with a Y-strap (right), which is designed to hold down a bear canister carried on top of the pack.

Although an internal hydration sleeve (and two hose ports) is provided, I find it more convenient to carry a smaller water bladder in the upper right side pocket (as shown in the photo gallery above). The side pocket location makes it much more accessible for refilling, and I offset the weight by packing a little more weight on the left side inside the pack.

Field Testing

I carried the Mariposa Plus on three backpacking trips and simply loved it. On two trips I carried all the shared gear and food so my wife could carry a lighter pack - this allowed me to test the Mariposa Plus with a heavier load. I carried 20 pounds on an overnight trip and noted that the Mariposa Plus carried the load much more comfortably than a frameless pack. On a 6 day trip in the Wind River Range in Wyoming my measured starting weight was 29 pounds. I marveled at how comfortably the pack carried the weight, in large part due to the pack’s wide, firm shoulder straps and effective weight transfer. The third trip involved carrying my overnight gear plus supplies to a remote aid station we manned for the Hardrock 100 Endurance Race in Silverton, Colorado. When packed with about 35 pounds of dense weight, I felt that the Mariposa Plus had exceeded its comfortable limit, but it did in fact carry the weight without damage to the pack or unusual discomfort to me.

Although the carbon fiber stays (along with a stiff sleeping pad) definitely help to support a heavier load, the stays are as straight as an arrow (in fact, they are arrow shafts!). There is no way to bend the stays to fit the curvature of your back. Consequently, the top of the pack tends to lean back (see first photo). The pack does not have load lifter straps to pull the top of the pack against the shoulders, because they would be ineffective with the unbendable stays. Switching to a curved flat carbon or fiberglass stays would be a lightweight option to attain an anatomical fit. Thin aluminum stays would be ideal because they could readily be bent to customize the curvature against the wearer's back, but they would increase the weight of the pack by about 3 ounces.

I tested the Mariposa Plus with several different sleeping pads I have, and found it to be amenable with the Bozeman Mountain Works TorsoLite, Gossamer Gear NightLight, Therm-a-Rest RidgeRest ¾, and Therm-a-Rest Prolite 3 Short. The NightLight is ideal because it provides a stiffer backpanel (for better weight transfer to the hips) with minimum thickness. The folded RidgeRest provides a lot of stiffness, but it’s 2.5 inch thickness pushed the pack’s center of gravity away from my back, which is undesirable for heavier loads. Inflatable pads provide a comfortably padded backpanel, but do nothing to stiffen the pack for weight transfer.

Gossamer Gear Mariposa Plus Backpack REVIEW - 6
A trick I used on a standard Mariposa pack to overcome the straight stay issue is to fold my TorsoLite pad so that it's square and stuff it into the bottom part of the pad sleeve. My wife sewed a strip of Velcro on the top edge to secure it. This modification pushes the bottom of the pack out and levers the top of the pack in closer to my shoulders, making the pack fit better.

Since the weight of the carbon fiber stays and foam inserts for the shoulder straps and hipbelt are so miniscule, adding up to 1.8 ounces, I made no effort to remove them from the pack to save weight. For me, the additional comfort and weight-carrying capacity are well worth the weight. I suspect other hikers will do the same, unless they intentionally strip the pack down and use it as a frameless backpack for loads less that about 15-18 pounds.

Gossamer Gear Mariposa Plus Backpack REVIEW - 7
The only problem I had with the Mariposa Plus was a seam came apart that attaches the elastic binding to the top of a side mesh pocket. My wife re-sewed it and there were no further problems.

On their website, Gossamer Gear notes that the mesh used for the sleeping pad sleeve has been reported to stain clothing, and they recommend giving it a good rinsing before using the pack. Also, they note that stitching on the mesh pockets may unravel (as mine did), and offer to repair existing packs at no charge. Both problems will be remedied in future production runs.


Because of its removable stays and other components, the Gossamer Gear Mariposa Plus (and Mariposa) is easily the most versatile ultralight backpack around. When stripped down, it’s a very comfortable and capable frameless pack. With the stays in, the comfortable range is extended to about 30 pounds.

When you hold the empty pack in your hand, it is hard to believe that it will comfortably carry up to 30 pounds, but it does. If your total pack weight is normally in the 20 to 30 pound range, consider getting the 20 ounce Gossamer Gear Mariposa or Mariposa Plus instead of a conventional internal frame backpack that can weigh 3 pounds or more. The standard Mariposa and Mariposa Plus are fully capable of carrying 20 to 30 pound loads with a good level of comfort. However, many conventional internal frame packs have additional features that fit the pack more closely to the user, like adjustable torso length, load lifters, bendable stays, adjustable shoulder strap width, and anatomically shaped padding.

For short ultralight trips, the Mariposa Plus simply has too much volume. One solution is to put your sleeping pad inside the main compartment to take up some of the volume. If you use an inflatable pad, you can even partially inflate it to adjust the volume. This technique would allow you to use one pack for practically any application. Alternatively, you could purchase Gossamer Gear’s Miniposa pack (3300 cubic inches, 18.6 ounces), which is about 900 cubic inches smaller.

Gossamer Gear Mariposa Plus Backpack REVIEW - 8
We all loved Gossamer Gear's G4 (left) in its heyday, but its 4600 cubic inch volume was simply too much for ultralight backpacking. The Mariposa Plus at 4200 cubic inches (center) is much better. It’s about the same size as the Six Moon Designs Comet (right), although the Comet has a specified volume of 3700 cubic inches. Volume specifications don’t always indicate the actual size of a pack.

The only other packs on the market with features and weight comparable to the Mariposa are the Six Moon Designs Starlite and Comet. The Starlite (30 ounces) has the same volume as the Mariposa, is constructed of rugged fabric with Dyneema gridstop, has hipbelt sizes available with and without pockets, has load lifters and hipbelt stabilizer straps, and has removable, shapeable flat aluminum stays. It also has a zippered security pocket on the inside. However, it weighs about 10 ounces more and is available in only one size that adjusts to fit a wide range of torsos. The slightly smaller (3700 cubic inches, 27 ounces) Comet has been re-designed for 2007, and has a similar feature set to the Starlite.

A distinct advantage of the Comet and Starlite is their torso length is adjustable and their aluminum stays can be bent to match the curvature of the user’s back to provide a customized fit and more comfort and weight carrying capacity.

What’s Unique

The Mariposa Plus is easily the lightest durable internal frame backpack on the market in its size class. It’s also extremely versatile. With the stays and other components removed, its weight is competitive with many frameless backpacks on the market and it’s more comfortable to carry because of its wide padded shoulder straps.

Recommendations for Improvement

  • Offer hipbelt pockets and a sternum strap pocket as an option or accessory
  • Switch to curved flat stays to achieve a more anatomical fit
  • Sew in the padding in the shoulder straps and hipbelt, and eliminate the Velcro closures
  • Move the sternum strap buckle to one side


"Gossamer Gear Mariposa Plus Backpack REVIEW," by Will Rietveld. (ISSN 1537-0364)., 2007-09-12 03:00:00-06.


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Gossamer Gear Mariposa Plus Backpack REVIEW
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Nathan V
(Junk) - MLife

Locale: The Great Lake State
Miniposa aluminum stays on 09/15/2007 07:28:37 MDT Print View

I made stays for my miniposa from #1916 easton aluminum arrow shafts. They bend easily with a little heat from a plumber's torch, and the little rounded ends that came in the carbon stays even fit back in the ends. They only weigh 0.4 oz each, and work pretty well.aluminum stays

Mike Barney
(eaglemb) - F

Locale: AZ, the Great Southwest!
Re: Re: GG Mariposa + Carbon Stays on 09/15/2007 11:07:24 MDT Print View

Good point. Unless you provided a anti-torque arm on each of them, or connected them, then that's an issue. On the other hand, it might be just as easy to use one of the lightweight pillows folded up as a lumbar support / bottom-of-the-pack-pusher-outer. As noted in an earlier post, that would help address the tendency of the pack to lean backwards.

Will Rietveld
(WilliWabbit) - MLife

Locale: Southwest Colorado
Gossamer Gear Mariposa Plus Comments on 09/16/2007 08:39:26 MDT Print View

Judging from your comments, its clear that a lot of people really LOVE this pack and want to share their feelings.

Jeff is right on the volume of the G4, so I corrected it in the article. Several people had told me that the G4 and Mariposa had the same specified volume, and I had always maintained that the Mariposa was smaller. So I included the photo to make the point. I guess I neglected to check the volume of the G4 on the GG website.

The internal map/sundries pocket issue is still confusing. Gossamer Gear clearly states on their website that this pack has a "Small map/permit/sundries pocket (right side)", but its not there. It would be really nice if they added it.

With the upgrades GG is considering, the bar is going to be raised once again for the perfect UL pack.

Sheldon McElhiney
(mcelhineysc) - MLife

Locale: Pacific Northwest
Gossamer Gear Mariposa Plus Comments on 09/16/2007 13:01:31 MDT Print View


I don't know about an internal pocket, but GG's site lists "Small map/permit/sundries pocket (right side)" under features. This would refer to the upper right side pocket. I find this pocket on both my Mariposa and Mariposa Plus very useful for said items.

Frank Perkins

Locale: North East
Re: Gossamer Gear Mariposa Plus Backpack REVIEW on 09/16/2007 16:42:23 MDT Print View

Sorry to keep asking the same question, but does anyone know if the waist belt pocket is included with the pack or was that added on? I can't seem to find a reference on the GG website so maybe it's an add-on accessory?


twig .
(bretthartwig) - MLife

Locale: Australia
Re: Gossamer Gear Mariposa Plus Backpack on 09/16/2007 17:48:38 MDT Print View

"(the sternum strap pocket and camera case are my additions)."

Brian Lewis
(brianle) - F

Locale: Pacific NW
no waist belt pocket included on 09/17/2007 11:07:16 MDT Print View

"... does anyone know if the waist belt pocket is included with the pack or was that added on?"

My wife has the 2006 model, I have the 2007 model and neither came with waist belt pockets of any kind.

To be clear, I'm talking about a pocket designed to easily stow various gear and access same while wearing the pack. The pack does come with velcro sealed "pockets" that allow you to either insert the included foam for both shoulder straps and waist belt, or some people use other gear (small articles of clothing) in there as padding. IMO it's too much of a PITA to try to put anything but the stock foam padding in those locations --- so while this could conceiveably be considered a "pocket", don't expect that you could access it while wearing the pack, and it would take the right size of item inserted and adjusted just right to work.

Edited by brianle on 09/17/2007 11:11:57 MDT.

Lance Parrish
(lancejparrish) - F

Locale: Southeast US
Mariposa Plus Concerns: on 09/17/2007 16:42:35 MDT Print View

Let me start by saying I have one of the first Mariposa Plus packs and I'm going to have to agree with the consensus about the need for some kind of belt pocket. If nothing else, I would like it for my Aqua Mira and a snack bar. I've taken to clipping small ditty bags to the belt on either side for this purpose. Another concern that I have is that if I put a pad any longer than a TRUE torso length pad - Z lite included - the pack rides too far away from my back throwing off my entire center of gravity. I like ultralite as much as the next guy, but I've taken to putting a two segment section of z-lite in the pad holder for padding and then dropping a rolled thinlite pad in the pack for my actual sleep pad. I'm not entirely convinced that this is a great method as it seems somewhat redundant, but I try to make up for that by using my pack as additional padding. In doing so, I have almost a full length sleep pad. On this note, if anyone has any suggestions for this, I'm all ears. I also found that my pack had a y-strap that was far too long if not lashing a bear canister to the top. After speaking with Grant on the issue, he informed me that they had a run with this problem, but they have since fixed it. He immediately offered to fix it for absolutely no charge. Grant is an amazing guy. I'm glad to see that there are still people like him kicking around. All things considered, get the pack. It's still one of my favorites.

Lance Parrish
(lancejparrish) - F

Locale: Southeast US
Clarification: on 09/17/2007 16:50:29 MDT Print View

I suppose I should have read all the posts before commenting, but the map/sundries pocket listed is NOT internal. It is the small pocket above the slanted water bottle pocket on the pack's right side. The only internal pocket is for the hydration system, though in truth I find that this is a convenient place to put my map where it is less likely to be ruined when I'm on a trail and if I'm in a place where I'm less inclined to consult the map every few minutes. Okay, enough from me.

Will Rietveld
(WilliWabbit) - MLife

Locale: Southwest Colorado
Small map/permit/sundries pocket on 09/18/2007 07:43:02 MDT Print View

As several of you point out, we can only conclude that the "Small map/permit/sundries pocket (right side)" must be the upper mesh pocket. For me, that's confusing, because I expected it to be a security pocket, not just one of the outside mesh pockets. If GG is simply referring to the upper miesh pocket, then my point still stands, I want an internal zippered security pocket for my truck key and other things I don't want to lose. The SMD Comet pack (review to be published soon) has one and its very useful.

As mentioned in the photo caption and by other posters, the hipbelt case and sternum strap pockets in the photos are my own additions to carry my camera, map, water treatment, and other things I want to access without removing the pack.

Overall, the GG Mariposa is one of the best UL packs available. We like to nitpick in our quest for the perfect pack, and most progressive manufacturers (like GG) are paying attention and do their best to give it to us.

Best, Will.

eric levine
(ericl) - F

Locale: Northern Colorado
Pack stays and gossamer packs on 09/19/2007 00:22:07 MDT Print View

Certainly there are flat carbon stays.

My Mountainsmith 4000 (circa ~1996) has them, one of the very first full sized truly light weight packs. My old Mountainsmith 2000 has an interesting feature as well: the pack when full, forms an S curve, which keeps the pack off most of the back and allows full ventilation.

That said, my G5 and G4 packs are the ones I use almost exclusively. The G5 for 3-season (7,5-9 pounds base)and the G4 for a backup/guest pack, or in winter (14-16 pounds base).

Miguel Arboleda
(butuki) - MLife

Locale: Kanto Plain, Japan
Mariposa Stays on 09/20/2007 00:33:58 MDT Print View

I was just wondering, as I read the posts here, if it would not be possible to design the carbon fiber stays so that there are three carbon fiber sections joined by two bendable, elongated aluminum ferrules. That way you have the lightness of the carbon fiber and the piability of the aluminum, without adding a significant amount of weight. Just a thought.

Jeff Sharp
(tsjeffery) - F

Locale: Blue Ridge
Re: Small map/permit/sundries pocket on 09/21/2007 14:59:29 MDT Print View

Will and Sheldon, you guys are correct. The "Small map/permit/sundries pocket (right side)" is the upper mesh pocket on the right side of the OUTSIDE of the pack. This feature is included on all of the Mariposa-series packs, including the Plus and the Mini. It's also listed as a feature on all of the web pages for these packs. It's not anything new or unique for the Plus.

With that being said, Grant and I have discussed the possibility (read: we're still contemplating it so don't post that it will be on the next generation of packs please) of adding a small, zippered internal pocket just as you have described, Will. We've both been wanting something where you could securely store small necessities with easy access to them. We were thinking of including it on this last run of packs but it didn't make the cut because we haven't even designed it yet. It's still a "possibility" at this point for future runs of the Mariposa-series packs to include this pocket. Stay tuned....

Regarding Waist Belt Pockets I'll say this one more time. ;-) We do not sell or include Waist Belt Pockets with any of our packs at this time. The velcro opening in the shoulder straps and waist belts are for padding only. We will be coming out with Waist Belt Pockets and Shoulder Strap Pockets in the very near future. These will be standalone pockets that can be used with pretty much any backpack on the market. With that in mind, we most likely will be selling these as individual items and not including them with the packs. You will be able to purchase them as a separate item. I hope this clears up any confusion regarding pockets but I know there will be other posters who do not take the time to read prior posts. Oh well...

Miguel, that sounds like an interesting idea for a stay. My first thought is that it would be costly to design and produce, since you're combining two very different substances, but we might take a look at some variation of that. If Grant and I were machinists and had a machine shop at our disposal the cost wouldn't be as much of an impedance. But on the other hand we like to "keep it simple" in our design and production in order to "keep it light" and "keep it affordable".


Roger Caffin
(rcaffin) - BPL Staff - MLife

Locale: Wollemi & Kosciusko NPs, Europe
Re: Re: Small map/permit/sundries pocket on 09/21/2007 19:55:06 MDT Print View

Hi Jeff

> Grant and I have discussed the possibility of adding a small, zippered internal pocket
I make my own UL packs, and I include a small flat zippered pocket like this on the inside - just large enough to hold a passport, credit cards and a car key (not a key ring). I think the logic is obvious?

> that sounds like an interesting idea for a stay. My first thought is that it would be costly to design and produce,
I make such connectors for carbon fibre tent poles for the UL tents I make. Yes, they are messy (expensive) to make unless you have exactly the right materials. Personally, I would not bother. High tensile aluminium is about right.


David Peterson
(thegeoguy) - F

Locale: Sonoma County, CA
Re: Re: GG Mariposa + Carbon Stays on 09/25/2007 19:31:49 MDT Print View

I have played around with aluminum stays (1/2 inch 6061) and also weighed the 3/8-inch stays from my McHale pack (7000-series aluminum). In general, a 24-inch long stay of this general width runs about 2 ounces. If you were to replace the 0.9 ounce carbon fiber stays with a couple of aluminum ones, I'd guess the net effect would be about 3 or 4 ounces added to the pack.

Personally, if I ever buy a Mariposa, I will definitely try this out...

Miguel Arboleda
(butuki) - MLife

Locale: Kanto Plain, Japan
Mariposa, Mariposa Plus, or Miniposa on 10/18/2007 02:44:05 MDT Print View

I am in the midst of clearing out my gear closet big time, getting rid of everything I don't need and trying to get my everyday life to be as ultralight as my backpack has become. I am trying to whittle down the packs that I have, too, so that I have one or two that do most of what I need. I do have a GoLite Jam2, but so far I'm just not happy with it. The straps are too thin and tend to roll, the hip belts tend to make the pack pull away from the back, the top securing strap is too short and won't cinch down when the pack isn't completely full, and the side pockets are way too shallow to porperly hold a platy bottle. Otherwise it would be a perfect size for most of what I do.

I therefore want to buy either the Mariposa, the Mariposa Plus, or the Miniposa. The Mariposa would probably be the right pack for me, except that I want to use the pack occasionally for international travel and in the craggier areas of the mountains, so that perhaps a more robest material is called for. I also like the removeable hipbelt of the Mariposa Plus. However, after using the G4 for many years and always finding it WAY too big, I wonder if the Miniposa might be better suited to the less bulky and smaller weights I carry now. I'm not worried about the straight carbon fiber stays because if I need stays I will replace the original ones with the aluminum stays from my Artic Pack. I really like the robust material of the Jam2, so the Plus might be a better choice. Most of my walks during the year are from 2 to 5 days long, with two or three trips of a week to two weeks or longer. I'd like a pack that can adapt well to all these kinds of trips.

Any opinions about what might be best to use? It's hard to tell sight unseen.

Miguel Arboleda
(butuki) - MLife

Locale: Kanto Plain, Japan
Mariposa, Mariposa Plus, or Miniposa? on 10/19/2007 08:42:56 MDT Print View

Any opinions?

Sven Klingemann
(svenklingemann) - F
Re: Mariposa, Mariposa Plus, or Miniposa? on 10/19/2007 09:04:06 MDT Print View

I think that the Mariposa Plus is the best option for 3+ days or 1-2 days during winter time. Based on my experience the Mariposa Plus is a bit too big for 1-2 days when the weather is warmer and less clothing is needed. Overall I would go for the Mariposa plus though if you need to settle for one single bag.

carlos fernandez rivas
(pitagorin) - MLife

Locale: Galicia -Spain
mariposas for miguel on 10/19/2007 15:02:27 MDT Print View

Hey Miguel I have the golite jam2 and the original mariposa and I understand your doubts.

In my personal opinion (and with my terrible grammar) I prefer the mariposa over the golite for one single reason I believe that the most important feature in a pack is the ability to carry as much weight as possible on our hips and the mariposa is one of the lightest packs with a useful hipbelt and the carbon fiber stays. This point is important because I read frecuently that with lighter loads, stays and belts are less useful ¿?

I never been capable to understand this because I used to carry a sub 3.5 kg (quite light i think?) base weight sometimes less ..(between 7.5 and 6 lb) and yes, you can carry this load witouth hipbelt .......but.... what happens when you add two liters of water and 2/3 kg of food ? (my typical load in a three days walk).......3.5+2+2,5=8Kg (17.64 lb) and with this load .. stays and hipbelt are a good option.

While is not perfect I can carry quite heavy loads with confort, and the 2007 model improves some aspects over my pack.

For general use (one or two days) I find this pack too big (I prefer the golite size) for that reason Im tempted to buy the miniposa (im resisting the temptation until now, arf!) for that reason fi you are happy with the golite size the miniposa must be my recommendation.

Well that´s not exactly true, why? Because you write that you want the pack for ocasional international travel and crag areas..............Meeec ..... we have a little problem here, I can´t recommend the mariposa for travelling and craggier areas .......because i tried both uses and unfortunately i find the pack too delicate.
The spinaker cloth is not designed for this abuse.

When I travel by plane I used to carry the pack empty as hand luggage or in a duffle bag, (as in the past TMB where I carry a tent remember ;-)

And in craggier areas i caused some holes in the pack with minimun friction with rocks. For that reason I use my Jam 2 in craggier areas. If you pretend to use the pack for travelling and cragging you must buy the mariposa plus (and I´m not sure if the stronger fabric will be adequate enought for that use) but as i told before I find it too big for short trips ...

¡! nothing is perfect. :-(

My conclusion is................. that the winner is ...................

¡the miniposa plus! .....................But unfortunately is not in production ....... :-(

but if you have one artic pack (use it in long walks) and a jam 2 (use it in craggier areas) buy the miniposa ........try it ..... and if you are happy with .... plan to buy a mariposa plus next

Anyway ..............remember one thing ...........Its REALLY difficult to find the perfect pack ...

I tried dozens ..nowadays i use one berghaus cyclops lite, one crux ak 57, one mariposa,one golite jam2, one marmot eiger 35, one GG wishper (with belt, of course) and I would like to buy more (artic pack, miniposa, cilo, mchale......) all excellent packs but I still dream with a mixture of all ............ ;-)

Edited by pitagorin on 10/22/2007 00:41:02 MDT.


Locale: Pacific Northwet
Re: Mariposa, Mariposa Plus, or Miniposa? on 10/19/2007 15:15:27 MDT Print View

I know it's not a Mariposa/Miniposa but how about the ULA conduit?

It's about the same size as the Jam2 with the same durable fabric. Side pockets are nice and the shoulder straps are really excellent.