The Professional Wheelchair Cushion provides exceptional pressure relief for users at risk of skin breakdown, or with a history of pressure ulcers. A full 1 5/8" thickness of Akton polymer provides effective weight distribution on a contoured or flat surface. The Professional provides an additional 50% cushioning against pressure, shear and vibration. This is significant for active clients using a power wheelchair who have concerns about bottoming-out and the potential effects of increased temperatures (due to foam insulation properties). The Akton polymer-textured overlay, on a contoured multi-layered foam base, promotes therapeutic positioning and comfort. The key element in our products is an exclusive material called AKTON Viscoelastic polymer. No one has AKTON polymer but us, and it is a wondrous material. It looks and feels like a gel, but is more body friendly. It does not leak, flow or bottom out. The best part is that it is repairable! The film is tissue equivalent, and together with the polymer, creates the most shear resistant product on the market today. Since it is reusable, it helps environmentally, economically, and of course clinically. The perfect package.