Carpenter, 8'x10', 1/2" Visco- Elastic Memory Foam, Spillguard DuPont Barrier Rug Pad The Densest Visco-Elastic Memory Foam cushion for soft feel under your feet. Full 1/2" Thick padding. Hypoallergenic - ozone friendly (no CFC's). DuPont Active Layer RS renewably sourced moisture barrier film. Protects your investment by enhancing carpet performance and makes any carpet or rug feel more luxurious under foot. Spillguard moisture barrier prevents spills and accidents from penetrating the cushion, so they can be blotted from the rug quickly and easily. This pad is intended to provide comfort and protection. Does not have a non-slip backing, not recommended for keeping rugs in place. Arrives as two (5'x8') pads pieced together with a 3" wide carpet tape.