"The surfboard that always delivers. A jack of all trades if you will. Our number one seller worldwide, the Hydro Hull has a modern trim rocker and a single to double concave bottom. These features are complimented by a beveled entry rail, which provides forgiveness with high performance. The Hydro Hull is an all purpose board for any level of surfing ability."Bill Stewart10 x 23 1/2 x 3' 3/8Built using a super light weight epoxy construction (SLX).Product description taken from http://www.stewartsurfboards.com/surfboard/hydro-h...