100% waterproof one-piece seamless construction improves performance - 2mm high abrasion Neo-Tech and seamless rubber design offer super-lightweight - performance - Air Mesh lining and Max Wick coating evaporate sweat - Internal nylon shank for flexible support and stability - BioBased Rebound insole for comfort energy return and odor control - BioGrip outsole maximizes oil and slip resistance - Low-profile tread for maximum contact with the ground-built for hard surfaces slick - floors and driveways - Comfort range from 5F to 85F (-15C to 29C) for four-season wearability