McKesson Premium Molded Foam Seat Cushion, 22 x 18 x 3 Inch

Waterproof, low-shear stretch nylon cover allows air to pass, but resists fluids for lasting breathability, comfort and durability. Specifically designed to optimize pressure relief by allowing user's pressure points to "immerse" into the gel-infused, visco-foam top layer Molded leg troughs promote thigh alignment and postural symmetry Raised front ridge to promote proper positioning and control sliding Open-cell, visco memory foam for breathability while gel acts as cooling agent for temperature control and mitigating perspiration Highly resilient material designed to maximize shock absorbency and provide pressure relief for up to 500 lbs. Adjustable safety straps buckle to maintain appropriate position and add security