For paddlers who need maximum stabilization of position. The Playboat Pad provides the leverage and purchase to make your roll more predictable and reliable. A full 3" (7.5 cm) high inside riser provides solid brace for knee to rest against. We made our Playboat Pad both long and wide for added support and gave it a full 3/4" (2 cm) thickness where your knee will rest for day-long comfort.