The POLYFORM EFC Elite Boat Fender Covers are crafted from premium-grade polyester yarn to offer durable, long-lasting protection for Polyform fenders. Designed as a seamless knit tube to eliminate splitting seams, these covers resist abrasion, UV exposure and water absorption to keep fenders manageable when wet. Each cover features a tough 1/4" line drawstring for a custom, tailored fit and quick, easy installation. Washable and sold individually, the EFC series fits a range of Polyform fender models and is engineered for season-to-season performance.