At Sidewind Marine, our boat fenders begin where the competition ends. The R Series fenders are constructed using molded vertical ribs to enhance strength and minimize rolling. All our fenders use premium marine grade vinyl construction for superior durability. In addition, our fenders are soft and pliable to prevent scratching and have built in UV protection to guard against discoloration. Every Sidewind Marine boat fender uses MicroGuard so you can be confident that your fender will last forever without ever rotting, or developing mold or mildew.