Made from a CFC free polyurethane formula which means the product is highly flexible Strong exterior means the item has high tear resistance Millions of tiny air bubbles enclosed within the polyurethane guarentee that the pressure of your own body weight is distributed in an optimalmAnner to ensure comfort and reduce the overall strain on the joints The ergonomic fashioning of the knee rest area is designed to allow a release of pressure from the patella and allow for a more even distribution of body weight
