Alpinizmo High Peak USA Chameleon 0/-10 Sleeping Bag, Green 34X86X22; Fill weight 3lb 5oz; 4 lbs. 1oz with extra layer on top; Carry weight 8lbs; Invista Thermo lite Quall Insulation; Double layer construction; Rip stop Nylon outer; Polyester Taffeta lining Temp rating at 0F; -10F with extra layer on top; Sew-in Draft Tube and Chest Collar; Hood with Drawstring closure and barrel lock Two bags can be zipped together; No.8 zipper Windshield; Anti snag Zipper band; Thermal Collar Compression Sack included; Detachable top layer