i purchased this sleeping bag to take on overnight kayaking trips so i was looking for a sleeping bag that didnt take up too much space. i was suprised that i was able to roll it up so small and unlike a few other bags i have i was able to put it in the small sack that it came with so easily. this sleeping bag also kept me warm at night with the temperatures getting down in the 30's. im really looking forward to using the Mountain Hardwear Down Flip sleeping bag on all of my kayaking trips! i would definitely recommend this to anyone who is looking for a sleeping bag to use in the spring, summer and fall and also doesnt take up any room. i am really happy about this purchase!