This combination skin protection and positioning immersion cushion uses both the properties offered by multi-layered high resilence (hr) foam and the envelopment properties of aqueous gel to provide the ultimate in pressure prevention. Hr foam is a flexible polyurethane foam with a rapid recovery from extreme compression. 3.5" pommel optimizes trunk stability and position in wheelchair, while the layer of gel redistributes pressure around bony prominences. Stretch cover is low sheer, fluid-resistant, anti microbial, and fire-retardant. 250 lb weight capacity. Limited 18 month warranty.