I recently purchased this bag, for my husband. We're avid snow campers, and have been slowly upgrading all of our gear. He's been having trouble finding a bag that fits him around his chest and shoulders, comfortably. I purchased this bag, because of it's weight, at under 3lbs for a 0 degree bag, with 800 fill, and the stretch capabilities, I thought it would fit my husband perfectly. I was right! He was snug as a bug, with the temps dropping into the single digits our first night out this season. He loves the stretchiness allowing him to move with more freedom and yet stay warm as it just "hugs" you right back up again. The water resistant material, kept the icecrystals that dropped from the top of the tent in the morning hours, from soaking the bag too much, keeping it nice and lofty. It's a little pricey, but so worth it!!

I am a cold sleeper and after many years with the synthetic Joan of Arc, I decided it was time for a down bag. I looked at everything and read every review out there...this bag is the bomb. I have used it on two fall trips where the temps dipped to about 25 and I was toasty. I was wearing thin long underwear but never even thought about a hat due to the snug hood. Love the stretchy baffles, no extra space to heat and I can easily sit cross legged in the bag. The draw string at the end to make the bag "shorter" is clever for us short gals, also less space to heat AND it makes for a great pocket to store my fuel at night as well as provide an extra down pillow at my feet. A cold night's sleep makes for a not-so-great camping trip...This bag is worth the money. Can't wait to try it out in December

I bought this bag because I was looking for a bag that would keep me warm and be comfortable. So far, so good. I've taken it out into the mountains of Southern California several times this fall and found that even without a tent I was toasty warm. Haven't tested it out at the zero mark yet, but I was almost hot when the temperature hit the teens, so it looks promising.

I already had a MontBell 20 degree bag. When I needed a slightly warmer bag, I tried several other brands. Nothing compared to the "pack down" size and the overall comfort of this bag. The MontBell may be slightly less warm then a couple of others, but this is easily compensated for with the aid of a bag liner. On the 30 degree, change the inside string cinch right away and the system is about perfect.

Stretch works great - just like advertised. Lets me stretch out my hips while in the bag. I got the bag for summer in the Arctic but decided to give it a go in the Rockies this August. It was too warm for my summer trip so I had to sleep in my skivvies with the zipper half open most of the time. Great product.

This is one of my best pieces of Winter gear. I camp in the snow quite a few times each Winter. I can handle being cold all day but if I'm cold at night it's a whole different story. This bag fits me well, I'm 6'0'' with a 44' chest. When I went to bed this weekend on Rainier my toes had been numb for several hours. Within 20 minutes only my nose was cold. It was < 20 and the winds were heinous. The bag is light, packs small and dries out quickly. I'd buy it again in a heartbeat.

Honestly I haven't used it in the winter yet. I bought it because my 6-year-old, 20-degree TNF catwalk was not warm enough for summer nights at 6500 feet in Montana. So obviously (despite LOTS of June snows) it has been warm enough. I actually got the bag because backcountry had to cancel my order for the mtn hardware women's phantom and I needed something before leaving for the field 2 days later- customer service kindly price matched this bag for me, as they should have. This bag was the second lightest item on the website that also wasn't too too long (i am 5'5"). I like its box baffle construction and the stretch element. It is really the sewing around every bafflebox that is stretchy....not the material itself (that would be pretty impressive considering the weight). It looks delicate but remains intact after several nibbling and wrestling matches in the tent with my labrador.

I love many things about this bag: first, I'm 6'3", 200 lbs, and I find the bag super roomy and comfortable. The stretchiness creates a cozy feeling but allows plenty of movement. The weight and packability is also excellent.

My one concern is that so far the temperature rating has not seemed accurate. This is supposed to be a 0 degree bag, and I've been cold on two 25 degree nights. I haven't returned the bag yet, am going to give it a few more tries, because other reviewers seem to find it warm. I'm generally a warm sleeper, so was surprised to be cold in this bag.

I've always been a cold sleeper, but now that I have this bag, I don't think I'll have that problem again! I just used it on a 6 day backpacking trip where the temps were in the teens at night, and I was perfectly comfortable. I'm pretty short, so it was nice to be able to close the last foot baffle on the really cold nights to warm it up a little. The stretch seams are also really nice, as they hold the bag in close, but hide a large amount of room for when I move around. The tent we used did not breathe well, so we had condensation on everything in the mornings, but the water just beaded up on the bag, and never soaked through. This bag is awesome!

This is by far the best bag that I have ever owned. It will adjust to any sleeping pattern perfectly. The baffles stretch with 800 fill down to keep every inch warm. The bottom of the bag is also equipped with a cinch cord to keep your feet warmer. The bag fits into a tiny area as well. You can stuff it down very tightly.