I love this bag. I'm 6'5" with long legs and always wake up sore when sleeping in a mummy bag. The Super Stretch bags from Mont Bell (I have the #1 and the #4) allow me to put one knee all the way to the side while keeping one leg straight. The bag is warm down to 32. Down to 20 I need to wear more layers, but it still works fine. Light and packs down to a small size. Excellet fit around the head and no problem with zipper snags.

Keep in mind this is my first down bag.

I took this to Yosemite last week, it dipped down to the upper 40's in my friend's Moken tent. Both nights, I wore a polyester workout shirt & some thin pants. First night, my friend's Boston Terrier slept with and burrowed down to the feet area like she always does. After a little while though, she thought it was too hot and made her way to the top. The 2nd night, I got to sleep alone and cinched up the shoulder area and fell asleep. A little while later I was dripping sweat. Definitely a great sleeping bag. I could probably go down to upper 30's in the same type of clothes. The flexibility of the material is definitely great as I do sleep on my side at times and I had no problems rolling around in the bag.

This is by far the best sleeping bag I have ever owned. I have owned half a dozen bags and taken them all backpacking on weeklong expeditions. This is the shiz! Super Warm (not too hot though), cool orange popsicle color, and the the SUPER STRETCH SYSYTEM. This is what sold me on this bag. I move around a lot in my sleep. From changing sides, to rolling on your back or stomach, you will not wake up because of the bag constricting you! The elastic in the seams allows you to strech your knees and arms soo much I can't belive it! A size small compression sack (granite gear) will shrink it down perfectly! I haven't seen a ton of reviews of Montbell on the internet but have a feeling they will be coming in the future because of the Super Stretch series. But this bag if you backpack and want to sleep in ultimate comfort without sacrificing weight and size. The Long size isn't too long for me and i'm 6'0".

I purchased this sleeping bag for its weight and warmth. It performed perfectly on both accounts. I carried it in my backpack with my other gear. It is incredibly portable. Our hike was in the Rocky Mountains at 11,0000 feet and the bag was plenty warm.

I just bought the MontBell bag, and have used it twice. Both times have been in the top five for outdoor sleeping. The stretch of the bag is great because it lets you move around easily. It kept me very warm the whole night through camping just below treeline of mt massive in colorado. all in all a good purchase. The compression sack that comes with the bag is weak, but the bag is top notch