HIO Sleep Cooling Gel Memory Foam Pillow for Neck Pain Relief, Washable Cover, Standard Size, 1-Pack SOFT REMOVABLE & WASHABLE COVER: 100% Polyester; STANDARD SIZE: 20"x12"x4" (PACK OF ONE ) UNIQUE THERATEUTIC CONTOUR WAVE DESIGN-It is designed according to the ergonomic theory, meaning that it perfectly fits the physical curves of the head, neck, and shoulders to ensure restful, rejuvenating slumber. COOL HYDROGEL PAD with keyboard decorative pattern keeps you cool and comfortable all night. HYDROGEL is a kind of solid that contains liquid, with special touch that is superior to many other materials, and features on breathability, constant temperature, insect prevention, anti-mite, good elasticity and air permeability. LONG LASTING THERAPEUTIC FUCNTION-Premium visco elastic memory foam pillow core reduces painful pressure points and holds its shape to consistently ensure proper alignment for your head, neck, shoulder and spine. SAFE AND HEALTHY: HIO Sleep memory foam coo gel pillow is naturally antimicrobial and resistant to allergens such as mold, dust mites, and other bacteria. Best gifts for your relatives and friends!