DAKINE AERO RACK PADS 18" The Dakine Aero Rack Pads are the answer to a more aerodynamic foam pad for your existing roof rack crossbars. Transport your surfboards with these 18-inch wide rack pads with upper padding and a sleek hook-and-loop closure holding them in place. The Aero Rack Pads are offered in two sizes to fit a range of crossbar circumferences. 31% Nylon, 25% Polyester, 22% Polyurethane, 19% Polyethylene, 3% Spandex Only pads top of bar for sleek fit Non fading UV resistant 600D polyester material Hook and loop closure