AliMed® Deluxe T-Foam™ Combo Cushion provides exceptional comfort and aids in pressure ulcer prevention with three 1” layers of weight-distributing foam. The soft, pink T-Foam (Temper Foam) top layer is cool, conforms comfortably to contours and is slow to recover which aids in circulation. The middle layer, made of medium-firmness blue T-Foam™, provides optimal support. Firm high-density foam completes the base layer that won’t bottom out even on the hottest, most humid days. No special chair required; use on any chair with a flat seat. Best for less active people, and those who spend extended amounts of time in a wheelchair. Cover is Black AliTex™, a two-way stretch, water-resistant fabric that "breathes" for comfort. 18"W x 16"D x 3"H or 16"W x 16"D x 3"H.