Features: -Three separate gel packs at the foot, middle torso and upper torso sections, surrounded by high-density foam. -Premium convoluted foam for excellent pressure redistribution and comfort. -16% thicker than standard gel foam overlays. -Nylon top cover with skid-resistant vinyl bottom cover. -Fluid-proof cover. -Four elastic bands secure the corners of the overlay to the mattress. -Dimensions: 34 x 76 x 3.5" (86 x 193 x 9 cm).