100% Waterproof; Dureva super-lightweight one-piece outsole formulated for long wear without the need for secondary rubber sole; Built on a running shoe platform to provide optimum comfort and performance; Outsole lug pattern provides reliable traction by flexing and bending over ground elements; Breathable Airmesh lining moves the air to keep feet dry and comfortable; Premium 4-way stretch materials for easy on/off convenience; Genuine rubber overlays, No PVC, PU, TPR; Reinforced tuck board with rigid nylon shank for added arch support; Slipper soft comfort and sized to athletic-shoe standards