Nylon,Polyester Imported WARM AND COMFORTABLE 0 degree sleeping bag designed with advanced TechLoft Silver insulation to keep you warm and comfortable in cold temperatures TWO-LAYER OFFSET CONSTRUCTION cold weather sleeping bag eliminates cold spots to keep you cozy even in freezing temperatures FULL COVERAGE with large hood, separating zippers, and a soft brushed polyester sleeping bag liner inside to keep you comfortable on cold nights camping OPTIMAL PROTECTION with 210T nylon diamond ripstop outer shell and insulated chest and zipper baffle, these sleeping bags are built tough for the trail ROOMY sleeping bags for adults at 90 x 36 in., provide ample space to stretch and move freely, creating a comfortable sleeping environment for a restful night's sleep COMPACT packable sleeping bag for camping packs down to 18 x 12.5 in. and fits into its compression sack for backpacking, travel, and storage between outdoor adventures