RACETECH Seat Foam HIGH +15mmKAWASAKIKXF250 21-26 KXF450 19-26 Racetech seat foams are produced in high density polyurethane, which does not absorb water and keeps its excellent qualities for a long time. They are made following the best world championship racing teams. They are quite interchargeable with the original ones. 1,5 centimeter higher than stock.