Each cover is custom made to suit your surfski ski exactly. This means no extra fabric flapping around when the car is on roof of your car. The cover has a sturdy outer layer to protect from bumps and scrapes. The inner layer is a non water absorbent foam material. This cushions the ski and insulates it from extremes of temperature. The inner layer is a water resistant fabric that keeps water out in the case of rain, or water in, when you want to keep saltwater from dripping onto your car.
Makers of the world's foremost surfski cover.