When the temperatures drop on your backpacking or camping trip, you'll be glad you brought along the Bozeman 0 Sleeping Bag. Thermal. Q synthetic insulation will perform in damp and dry environments making it a good choice for late fall, winter, and spring trips. The sleeping bag has a Comfort Mummy cut that helps maximize thermal efficiency while still providing some wiggle room. The Comfort foot box lets your feet assume a more natural position while you sleep.