Master Fender Covers A4 - 21-1/2" x 28" - Double Layer - Black [MFC-A4B]A4 21 1 2" x 28" Double Layer Black The A Series are double layered making them softer, more durable & reversible. 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