Gel Convoluted Foam Cushion 17 x17 x3 Navy 17 W x 17 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