Alpinizmo High Peak USA Chameleon 20/0 Sleeping Bag, Blue 34X86X22; Fill weight 1lb 13oz; 3 lbs. with extra layer on top; Carry weight 5lbs 7oz; Invista Thermo lite Quall Insulation; Double layer construction; Rip stop Nylon outer; Polyester Taffeta lining Temp rating at 20F; 0F 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