Meeting the Wheelchair Needs of Stroke Victims: AliMed Stroke Cushions with Low-Profile Solid Seat Insert (SSI) meets the wheelchair positioning needs of stroke patients. Made of rigid, closed-cell foam, the SSI has a concave bottom to fill a wheelchair's sagging sling seat. Low-profile cushion allows the user's legs to reach the floor so he or she can self-propel the wheelchair. Gel/cushion interface helps prevent window edema by creating a gradual pressure transition between the firmness of the solid seat insert and the soft, pressure-relieving gel insert. Front waterfall edge reduces pressure at distal edges of thighs. I. Basic Stroke Cushion with SSI Gel insert in the rear of the Solid Seat Insert offers excellent coccyx protection.