The Lumex Skin Protection 3 Inch Cushion reduces surface pressure through the use of a proprietary non-aqueous gel placed in three pressure zones. The cushion uses a high-density base foam in combination with a visco-elastic topper for added comfort and also positions the user with a moderate slope from front to back. For use with moderate risk patients. Non-aqueous gel. Fluid-proof stretch cover. Manufacturers 18-month warranty. Designed to meet the requirements of HCPCS Code E2603-E2604. Latex Free. 3 Inch thick cushion. Available in 5 sizes, select from the option drop down box. Available in various sizes, please see drop down menu.