Product details:

AliMed Bariatric Tri-Foam Cushion Bariatric Tri-Foam Cushion, 22"W x 18"D Medical Comfort Specialists Bariatric Wheelchair Cushions -Won't bottom out -Pressure relief for patients up to 1,000-lbs. -Fits wheelchairs up to 30" wide -3 layers provide exceptional pressure distribution AliMed Bariatric Tri-Foam Cushion for wheelchairs provides advanced pressure relief, helping to prevent pressure ulcers for patients up to 1,000-lbs. Won't bottom out, even when used by larger, heavier patients. Unlike ordinary cushions that are simply made bigger for bariatric patients, this tri-foam cushion has 3 layers - a 2" top layer of T-Foam , the leading memory foam for exceptional pressure relief, a 1" middle layer of open-cell foam for pressure reduction and a 1" base layer of closed-cell foam to help reduce pressure and to help prevent bottoming out. Includes Black washable, waterproof cover with ties and carry handle.Standard sizes available for wheelchairs up to 30" wide.