This Aqua Sock on steroids features a water-friendly upper and bungie closure molded upper cage for extra support. The Hydrozzz fits like a traditional sock rather than a shoe. The EVA footbed ensures great comfort for whitewater rafting, kayaking, jet skiing or beach combing. The outsole texture is built with a micro-diamond which allows for more traction on a SUP deck, or while rock hopping and climbing out of slippery river banks.