Master Fender Covers A4 - 21-1/2" x 28" - Double Layer - Navy. Master Fender Covers are specially designed to protect the topsides and hull from fender scuff and reduce the need for expensive gel coat repairs.They are made from a premium stain resistant non-abrasive loop-knit acrylic fabric which is both durable and fade resistant. They are available in a variety of colors and sizes to suit your individual requirements. Package Contents: Master Fender Covers A4 Fender Cover Master Fender Covers MFC-A4N: A4 - 21-1/2" x 28" - Double Layer - Navy