Western Mountaineering Puma Gore WS Sleeping Bag: -25 Degree Down

So far, I've used this bag on summits of Rainier, Eldorado Peak in the North Cascades and 5 nights in Yosemite backcountry. It was easily warm enough for sleeping on the glacier and still very comfortable in higher temps. I just kept the side zips open and it was perfect. I used a sleeping pad and ZLite air mattress underneath and it regulated temps well. I keep the bag in a waterproof compression sack when in my pack and it always comes out great. No problem with moisture. Other reviewers are right - construction and materials are top notch. I highly recommend this bag.

I took mine recently to -30 F on a calm night lying out under the stars. I used an old 2" Cabelas pad and a closed cell pad. I wore medium weight wool socks, fleece pants, upper body (wool t-shirt, r2 fleece, ghost whisperer) and was plenty warm all around. I could go lower with ease I think.

Have had my Puma GWS down to -20*F and stayed nice and warm, especially in the torso/head region. Have never used a dedicated winter mat. However, with a good high R-value mat this guy should be good down to minus thirty, no prob. I use a size Large S to S compression stuff as long as you stuff the bag inside out!

I finally pulled the trigger on a solid winter bag for mountaineering and overnight tours. I obviously can't speak to its complete performance at this time of the year but the quality of the bag is top notch. I got in it and barely had it fully zipped before I had to get out in fear of overheating. The zipper pulls extremely easily and does not get caught up. Super stoked to get this thing on some snow!

It is definitely one of the best pieces someone could buy to challenge cold nights. It's very comfortable, warm, resistant, easy to open and close zippers, light, and made in the US. Expensive but worth it every single penny. X

This was my first of many products from Western Mountaineering, and certainly not my last. Excellent craftsmanship due to the precise stitching and evenly distributed 850 fill down. Western Mountaineering takes exceptional pride in making their products perform and last. This bag compresses into a medium sized sea to summit compression sack and is very true to its temperature ratings. I strongly recommend you try out Western Mountaineering if you want something that will last and outperform any other.

This bag is fantastic. Great performance, warm and holds it's rating. A bit heavy and bulky, but totally worth it.

Toasty to -30F and wind/waterproof for stormy outings. I'm still torn between this and my older feathered friends, but the windstopper is so good that this gets more use and maybe stuffs smaller. Except for 8000m peaks or the arctic winter this is all you'll ever need. Haven't had it refilled yet but I think Western could do it and the fabric will probably last that long.

I spent 11 days in the Eastern Sierra Nevada from 8 to 11k during April. This phenomenal piece of gear was amazing. I received it as a gift for graduating med school and I love it. We had a 5 day ice/sleet/snow/rain storm and over the trip I watched as my friends bag's deflated with the inevitable moisture build up. Every day, I would pull this bag out and it would inflate like a hot air balloon. With temps hovering below 10F and significant moisture in the air this bag performed flawlessly. I was never cold (at night) and it shed tent condensation while breathing away my considerable persperation. I am blown away by the quality of the material and the precision of build. The zipper is effortless (even at 2am when my brain cant figure out inside from outside) and NEVER snagged. I have 7 sleeping bags from various reputable manufacturers and nothing compares to this quality. Nothing but positive things to say. At 3am when its frigid outside I am so grateful to have this thing.

Are you wearing your clothes & downjacket in your winter bag to stay warm- well those nights are gone
with a puma - 25, I have one with the OVERFILL OPTION ,must order over the phone for overfill.I have
been using down bags since the mid 60s I love my puma super warm !!!! no cold spots.winter summits is
what I do.the big ones 14s, at30 below it is real toasty warm. trust me you will be very happy with
a puma-25. richard n.m.

I bought this bag when it was the Super Puma and first came out in the early 90s. I spent two nights in it caught in the "blizzard of '96" Weaver Mountain Pass in Southern Shenandoah, Va. Since then, it's been my cold weather mainstay. Would I change anything? Yes...I think it's only about 700 down (not sure) but I'd like it to be 850. Other than that you can't beat it. Hint: Keep it in a very large storage bag and it will last forever.

I bought this a fews years back. I wanted a quality bag made in the US and stumbled on WM while living in Montana. I really like this bag. The first night I had it the temp was -8 and I was just fine. On a -30 night in Big Sky I slept outside just to test it - no tent on a porch - I was just fine. I got the short and overstuffed the footbox. I really like this bag. The only reason I don't give it 5 stars is because I have since found an even better bag, Feathered Friends. All my sleeping bags are made by them now, the materials are better the price is a bit less, the weight is better, made is Seattle, get to choose your color, and I love their work. This is a super bag and you can't go wrong, but just know there are options for US-made down bags that will keep you safe and warm in extraordinary conditions.

Everything said about this bag is true. Refer to my review of the microfiber version for more info.One note to help you stuff the bag into its stuff sack. Gore Windstopper is windproof. Air does not excape the bag easily when right side out. To stuff this bag and all Windstopper bags, turn it inside out for a much easier, more mitten friendly time!

I used this bag for 16 days on Denali this summer and it's the best cold weather bag I've ever had. Not only was it really comfortable and spacious (I had a long)but was super warm, even at -20 a couple nights at high camp. The zippers worked flawlessly, no catching, and the insulated hood fit great and kept my dome real warm. and another great thing is this bag packs down in a compression stuff sack super small, so that leaves you mor eroom for gear in your pack.

IF YOU WANT A WINTER BAG THAT IS FULLY LOFTED AND WILL TRULY WORK AT -20 ECT. I HAVE BEEN USING DOWN BAGS FOP
OVER 54 YEARS WESTERN IS IT !! THEY JUST MAKE SLEEPING BAGS. ORDER OVER THE PHONE SO YOU CAN GET THE OVERFILL OPTION WORTH EVERY PENNY. !!!!!