Polyform Elite Boat Fender Cover f/HTM-4 - Graphite [EFC-4 GRAPHITE]Elite Boat Fender Cover for HTM 4 Graphite Fender covers should be as tough as the fenders they protect. That was our criteria used in developing the Elite Fender Cover series. Polyform uses a premium grade polyester yarn that is resistant to abrasion and UV exposure. Additionally, it resists water absorption better than other materials, keeping the fender covers light when wet. The cover is woven on a special knitting machine that produces a seamless