●Size: Single: 39.4 x 80.7 inches (100 x 205 cm); Semi-double: 47.2 x 80.7 inches (120 x 205 cm); Double: 55.1 x 80.3 inches (140 x 205 cm); Fabric: Surface: 100% polyester with hygroscopic heat generating sheet Made in China ●Microfiber warm bed pad Simple solid design ●Moisture Wicking Heat Generating Sheet Included: By absorbing moisture generated by humans, it warms up with the vaporization heat ●Reinforced rubber back corners for easy on and off