A/S has used a variety of materials over the years on the surface of the fiberglass platform. The early years we used a thin rubber mat with small raised round "pebbles" no longer available. Then we used carpet that matched the interior, then we used "Jelly Bean" mat, a heavier black rubber mat that has a raised oval, oblong shape. This is still available. Most modern ski boats use a softer foam rubber like the sea-dek which is available in a variety of colors & patterns.