Integrated solid seat base and a top layer of checkerboard T-Gel offers shear reduction and pressure redistribution. Wedge shape improves posture by discouraging sacral sitting habits. T-Gel’s elastomer gel mimics fatty tissue and moves with the skin to minimize shear and skin breakdown. The cushion's tapered front edge relieves pressure on thighs. • Firm Polyfoam with 3/4" Checkerboard T-Gel top layer• 4-1/2"H tapers to 3-3/4"H rear • Removable cushion cover: Black, wipe-clean, water-resistant, nonskid bottom, fully launderable • Rear ties |