Sperry reinvents one of our original athletic sea sneakers. The classic Harbormaster gets a re-fit with an innovative synthetic upper that provides flexibility, ventilation and durability, and enjoys increased midsole cushioning that reduces the impact of hull pounding and engine vibration. Welcome aboard to an old friend. Synthetic and mesh upper sheds water and dries quickly. Flex wire harness lacing system delivers custom fit and lateral support. Removable compression molded EVA footbed maximizes comfort. Molded EVA midsole provides underfoot cushioning. Non-marking molded rubber outsole features Adaptive Wave Siping™ technology to enhance traction on wet or dry surfaces.