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Marmot Hydrogen 30 - Sizing
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Paul Wozniak

Locale: Midwest
Marmot Hydrogen 30 - Sizing on 10/09/2009 12:01:24 MDT Print View

I have two questions re the Hydrogen 30 and need to decide fast. It's $203- out the door at REI. 20% discount ends 10/18.

I've been salivating over the WM Megalite for it's combination of 30F bag with low weight and broad shoulders. It's sized right for me. It's also $350 with few deals to be found.

The Hydrogen looks like a good compromise considering I can get it for $150- less. Momma may not be happy but she'll have 150 fewer reasons to put me out with the dog.

Question: Will the 62" shoulders be sufficient with a Thermawrap jacket on? How about the length?

5'11-3/4" tall
Weight 200, coat size 46.
Side sleeper

Thanks for your input. I have until Sunday to decide.

Paul Wozniak

Locale: Midwest
Re: Marmot Hydrogen 30 - Sizing on 10/09/2009 12:53:23 MDT Print View

Seems that the 20% REI member discount applies to "non-sale items". Lowers the price difference with the WM Megalite to $100-. Still the questions stand, but the dog may have to make room for night or two.

Mike M
(mtwarden) - MLife

Locale: Montana
sizing on 10/09/2009 12:59:28 MDT Print View

I'm 6'0, 200 # size 44 and find the regular very much to my liking- I'm glad I didn't get the long as it would have been wasted space/weight

In contrast I had a WM Summerlite and it was fine length wise, but too restrictive for my liking (side sleeper might have something to do w/ it)


Gary Dunckel
(Zia-Grill-Guy) - MLife

Locale: Boulder
Hydrogen zizing on 10/09/2009 12:59:30 MDT Print View

Paul, maybe I can help here. After reading your post, I went down to the basement, put on my Thermawrap jacket, slipped into a green '09 Hydrogen (long), and zipped it up fully. I'm almost the same measurements as you, but with a 44" chest. I think it will fit the way you want it to, with a bit of extra room to spare.

Now, here's Mama's problem--the sale price will be $254, not $203. The 20% discount can only be had on full-priced items. Being already on sale, the Hydrogen doesn't qualify. Still, if Mama throws you out, you'll have a fine bag to sleep in while you're wedged between a couple of warm dogs.

Edit-Looks like you figured out the 20% thing. I'll also mention that the long version has 2" extra girth from shoulder to foot, compared with the regular length. The regular might be a bit constrictive for what you want to do. Then again, it might just be OK.

Edited by Zia-Grill-Guy on 10/09/2009 13:07:15 MDT.

Inaki Diaz de Etura
(inaki) - MLife

Locale: Iberia highlands
Re: Marmot Hydrogen 30 - Sizing on 10/09/2009 15:51:10 MDT Print View

I'm 5'7" and 142 lbs and the regular Hydrogen fits me fine with room to spare. The shoulder girth is generous enough for something like a Thermawrap and I actually find it a good compromise between fit and versatility. I have narrow shoulders though but 62" is still quite generous.
The Hydrogen is a very nice bag. I mostly use quilts now but this is the one bag I still keep and use in the fall/spring when I expect temps that might be too low for my summer quilt.

Paul Wozniak

Locale: Midwest
Marmot Hydrogen 30 - sizing on 10/10/2009 20:41:17 MDT Print View

Thanks all for the info. I think the hydrogen will do it for me. Even though it will cost me $50- more than I originally thought I do believe I will pull the trigger tomorrow.

Brad Fisher

Locale: NC/TN/VA Mountains
Re: Marmot Hydrogen 30 - sizing on 10/11/2009 07:52:19 MDT Print View


I think you will like the bag. I'm 5'10", 172 pounds with 44 chest and have no problem. I use a patagonia sweater in cold temps and have plenty of room. I have easily pushed this bag to 25 degrees.