Teijins warm and comfortable thermal material 1. Far infrared radiation emitted from the special ceramic embedded in the warm fibers itself will keep your body warm. 2. Special ceramic concentrated on the outer layer of thermal fiber absorbs and releases far infrared rays from the body. Excellent heat retention properties. 3. Washable durability: The effect is virtually unchanged after repeated washing. Package Size: 22.8 x 6.3 x 15.0 inches (580 x 160 x 380 mm); Contents: 39.4 x 78.7 inches (1,000 x 2,000 mm) (Material) Front and Back: 65% polyester, 35% cotton, Filling: 100% polyester (0.3 kg) (Made in Taijin), Made in a cosmetic box.