I received the top bag weighed in at about 17 ounces I'm 5'11 and 150 and it fits me well. I am planning on cutting the back open to make it a true top quilt similar to the go lite design. Very happy with the 103 purchase.

Mark - FYI -

I cut the back off of mine. i like it that way, otherwise it would be too constrictive for me. Reduced the weight to 15 ounces.

But the top bag (now a quilt) is so narrow that it's hard to stay under. I only use it when I know the nights will be warm or I will be using a bivy to help hold the shape or I bring down pants to stay warm.

I love the weight!

I received the RAB Quantum 800. It is indeed longer, it would be a long by US standards.
I'm 5'10 and can fit in the bag entirely, no need for a hood :). Shoulder girth is only 55", quite narrow, even for me at 140 lbs, but I was able to fit with a fleece on; I have regular width shoulders, but I am slim btw. Since it's so narrow in the shoulders I feel the lower half of the bag should be narrower. This bag is best for a tall guy with narrow shoulders and big long legs :).
The pertex on the outside is more solid than whatever they're using on the WM Ultralite or MH Phantom 32. The zipper is 4/5 length and opens both ways.
It has a differential cut, is rated for -18C comfort, and it has enough 850 fill down for me to believe the rating is accurate. The loft is a minimum of 7 inches. The baffles are continuous as far as I can tell. The bag weighs 1410g.
I can't decide if having a longer winter bag is good or bad, but it was definitely a good deal.

Thanks for the update man.

Well I missed out on the $40 discount but may still pull the trigger. A couple questions for those who bought one already:

1) What's the difference between the Quantum 800 and Quantum Endurance 800?

2) All the review sites list the weight as being close to 1300 grams (3 lb) - where are you getting the 400 gram weight form?

One more question - is this bag rated to 0C or 0F?

http://www.departmentofgoods.com/rab-quantum-endurance-800-sleeping-bag-0-degree-down

Degree: 0F (-18C)
Weight: 3lb 1oz (1400g)

Would anyone be willing to post a couple of these bags to oz for me? I would be happy to pay for all postage packaging and a bit more. It cost $165 to post the bags here using that site.

Alternatively does anyone know of a company other than hopshopgo.com that posts stuff through to oz?

Cheers,

Jeremy.

Andrei, the endurance fabric should be better at keeping outside moisture from getting the down wet.

Thanks. I didn't realize that quantum top bag and quantum 800 are differnet bags at first.

So can anyone tell me the difference between Quantum Top Bag: http://www.departmentofgoods.com/rab-quantum-top-bag

and Quantum Top Bag AR:
http://www.departmentofgoods.com/rab-quantum-top-bag-ar

AR seems like a steal at $80 and both have the same specs from what I can tell.

It looks like the AR version has a Primaloft footbox (instead of down) and a hood. The non-AR is all down fill and doesn't have a hood.

David,

What temperatures would you feel comfortable, say, without further insulation. How narrow is it?

Cheers.

The AR version may also have a pad sleeve. The top bag being sold probably does not, but others will have to answer if it does or not. If it does not, RAB must have added a couple ounces of down over the earlier versions which is never a bad idea.

AR has a sleeve based on this review:

http://www.petesy.co.uk/rab-quantum-top-bag-ar-review/

Answered my own question, no sleeve on the original bag according to review found here

http://www.buachaille.com/p1022-3-26/Down-Sleeping-Bags/Rab-Quantum-Top-Bag.html

Edited by huai1 on 07/20/2011 19:58:32 MDT.

Similar to the question regarding the top bag. I am 5'7"... will it fit me well?
Which one would you recomment between the Rab Quantum Top Bag and Rab Quantum Top Bag AR? Which one is lighter I guess?

Thanks!

Edited by akatsuki_the_devil on 07/20/2011 19:05:04 MDT.

According to reviews:
Top Bag 430 g, no sleeve, no hood, mesh bottom, full down insulation
Top Bag AR: 550 g, has sleeve, hood, solid bottom, primaloft insulation under feet and head

Andrei, it was only the first year or so top bag that had the mesh bottom. The 2008 version had a solid pertex quantum bottom but no sleeve. Just to clarify.

Edited by jshann on 07/20/2011 20:37:38 MDT.

John - how is the top bag supposed to be secured to the pad if it doesn't have a sleeve?

Edited by huai1 on 07/20/2011 20:47:23 MDT.

Jeremy - check out these guys for shipping

http://ultraliteoutfitters.com/international.html

Have you used that site? Has anyone?
Jeremy, you could try shipito.com