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What would I get for 1.3 more ounces?
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Jon Leibowitz
(jleeb) - F - MLife

Locale: 4Corners
What would I get for 1.3 more ounces? on 03/14/2014 17:38:19 MDT Print View

I recently purchased the OR Helium II. It comes in at 6.4 ounces.

I've pondered purchasing the MH Super Light Plasmic Jacket, which comes in at 7.7 ounces. The MH uses Dry.Q EVAP™ 15D 2.5L as the fabric while the OR uses Pertex® Shield+ DS 2.5L, 100% nylon 30D ripstop with clear laminate.

Frankly I have no idea what either of those fabrics are, which is better, more breathable etc. All I know is they both say 2.5L...no idea what that is either.

Does anyone have opinions on the differences? Is one getting a significantly better rain jacket for 1.3 ounces more? Or are they both basically UL "breathable" rain jackets that will wet out and/or suck in a heavy storm? If they are the both the latter...I'll stick with the OR and save some weight. :)

Thanks!

robert van putten
(Bawana) - F

Locale: Planet Bob
? on 03/14/2014 18:35:17 MDT Print View

I haven't a clue!
I dunno that stuff.
But, I can make a recommendation to help you decide. Put on the jacket ya got and have someone spray ya down good with a garden hose. If it seems to work OK, roll with it and save the coin!

Dale Wambaugh
(dwambaugh) - MLife

Locale: Pacific Northwest
Re: What would I get for 1.3 more ounces? on 03/14/2014 22:12:39 MDT Print View

1layer fabric, 1layer membrane, .5 layer over coating to protect the membrane = 2.5 layers

Stephen Komae
(skomae) - MLife

Locale: northeastern US
Yes on 03/14/2014 22:22:16 MDT Print View

The fabric used in the Plasmic is eVent DVL. It is simply rebranded under the DryQ umbrella by MHW.

It will breathe noticeably better than the Helium's Pertex Shield Plus which is a monolithic polyurethane membrane, which "breathes" by absorbing and releasing condensation. eVent is an ePTFE membrane, which is porous and air permeable, so humidity is pushed out without state change (vapor to liquid to vapor).

It gets more complicated than that, though. Both membranes are quite fragile due to their thin coatings and so with even casual use you may find the need or desire to test the warranty policy of your jacket's manufacturer. By that alone, most people would agree that Outdoor Research has a far more generous warranty coverage.

Jon Leibowitz
(jleeb) - F - MLife

Locale: 4Corners
Re: Yes on 03/15/2014 07:52:56 MDT Print View

So the MH breathes better. Is it also more waterproof?

John McAlpine
(HairlessApe) - M

Locale: PNW
OR Helium II on 03/15/2014 08:40:41 MDT Print View

I own the Helium II here in the PNW. It will wet out after 1 hour of constant rain. I bought it for when I travel to a place like SW Asia where I will get 15 minute downpours.
I know "Wired" recently used the same jacket on her CDT thru-hike.

Stephen Komae
(skomae) - MLife

Locale: northeastern US
Re: Re: Yes on 03/15/2014 21:44:08 MDT Print View

> So the MH breathes better. Is it also more waterproof?

A loaded question. Water should not pass through any jacket like these. However, when a fabric is saturated with water on the outside, regardless of whether or not it is actually leaking you will get moist because wet fabric doesn't pass internal humidity well.