Air gel features three layers of polyurethane with gel pads inserted inside each individual air cell to provide additional cushioning, shock absorption and vibration dampening; can also be used without air when the rider wishes to feel 100% "close to the bike" yet needs some additional cushioning This is a "gel pad" that is completely adjustable and will not get hot or stay hot The combination of air and medical grade gel is unique to Wild Ass Cover included. CUSHION SADDLE AIRGEL