100% Polyester 100% polyester 210T fabric; 100% polyester 240T poly-pouch lining;300g/m2 hollow fiber-4 holes cotton filling COZY AND ROOMY: This cotton mummy sleeping bag measures 84.6 x 31.5 x 21.6", More comfortable and roomy when sleeping. Mummy sleeping bags not only fit adult body very well, but also reduce extra weight. ANTI-TEAR AND DURABLE: Made in 100% polyester 210T fabric and 100% polyester 240T poly-pouch. Both materials are durable, soft and water repellent. You can use it for many years. Perfect for camping, hiking, travelling & Outdoor Activities. EASY TO STORAGE: Package size is 13.8" x 9", which weighs 3.5 lbs. It comes with a 210D oxford compression sack, very convenient. Go anywhere you want to. CONVENIENT TO USE: Pull zipper smoothly with extra anti-nag two-way zipper. Collar zipper loops to prevent the zipper from accidentally opening. A pocket inside to store small items. Comfort Temperature: 32/0; Limit Temperature: 23/-5.