Designed for people who sit for long periods of time, this super-comfortable gel cushion uses gel flotation to provide maximum comfort. This gel cushion has high-density foam on the bottom, gel in the center and additional foam on top. The removable cotton/polyester cover is washable and has faux sheepskin on top to keep you warm in winter, cool in summer. 16" x 18" x 3 1/2". Made in the USA.