The Invacare® Matrx® PS cushion is designed to provide superior positioning, stability and comfort. The design features an anatomically contoured shape with a unique waffled ischial relief recess and an innovative reversible outer cover. Matrx PS Cushions include inner & outer covers. Additional Extra covers are also available. Reversible outer cover: Innovative reversible Dartex™ outer cover may be used smooth or fabric side out Dartex™ fabric is moisture resistant and breathable Hook and loop fastener strips Inner cover: Moisture resistant Easily wiped clean Cushion: Durable high resilient foam prevents “bottoming out” Anatomically molded shape for optimal positioning & comfort Rear radius for sacral support Waterfall front edge • Made with Ultra-Fresh™ for antibacterial and odor protection Ischial relief area Waffled recess provides immersion of bony prominences Helps maintain pelvic position and prevent sliding For more information about the Matrix PS Cushion you can check out the Invacare website or download their product brochure