Lafuma One Kilo Extreme 35-Degree Sleeping Bag (Left Zip) Lightweight mummy-style sleeping bag rated to 35 degrees Fahrenheit Filled with Thermolite Extreme, an efficient technical thermal insulation fabric with exceptional inflation capacity Full hood with easy access drawcord and double closure Cold-proof flap that prevents air from entering through the zipper Stuffs down to 12 x 7 inches; sack included