Acerbis innovative X-seats are manufactured entirely of one piece for exceptional durability and comfort. The outer shell is made from a hard wearing flexible plastic blend Featuring anti-slip grip at the front graduating to raised waves near the back. Once the shell is made expanding foam is injection moulded to form the seat. Flexy form grooves are cut into the sides allowing more flex for more comfort. The X seat is 100% water proof and pressure washer safe and is very resistant to wear from knee braces and crash damage.