Premium Fender Covers for Tuff End Buoys are made of heavy weight knit acrylic fabric that will stand up to sunlight, abrasion, and the harshest of environments. Covers are secured on bottom with an adjustable sewn-in draw string and barrel lock that keeps the cover in place yet allows for easy removal for cleaning. By combining superior fabric with these excellent construction features, Taylor Made delivers a fender cover that won't fail after only a season or two - but will look great and provide lasting protection for many years. 100% Heavy Duty Loop Knit AcrylicMachine WashableUV, Abrasion and Stain ResistantPrevents Grime and Dirt on Fenders