U-shaped pillow provides pressure relieving support and comfort for your head and neck, due to the sculpted, high-density memory foam. Also features a reusable hot/cold gel pack that relaxes tired, sore muscles by freezing or heating. Luxury velour cover makes it feel wonderful against your skin. Cover is 70% cotton/30% polyester. Foam pillow is 100% visco elastic. Measures 8" L x 16" W x 4" D. Cover is machine washable. Made in the USA of imported materials. 10-year warranty.