The ultimate get-wet Sperry boat shoes maintain the shape of the original but feature an ingenious system of ?portholes? and ?gills? that drain water to keep feet fresh. Its non-marking rubber outsole and classic profile make it a match for land as well as sea. Breathable ?portholes? on top side keep feet fresh Strategically placed ?gills? that drain water Non-marking outsole with Signature Sperry Molded Wave-Siping? technology for enhanced traction Designed to be roomy - if you're a half size, size down for best fit