Gel Convoluted Foam Cushion 18 x 16 x 3 Navy 18 W x 16 D x 3 * Custom and bariatric available (bariatric sizes increase weight capacity to 450 Lbs.) * 250 Lbs. weight capacity * Utilizes the same gel formulation and bladder design as the Economy Cushion * Low shear nylon cover is anti-microbial and fluid-proof to protect the inner core Shipping Carton Size: 18 L x 16 W x 5 H