From Sperry Top-Sider, the Men's Boatyard waterproof moccasins feature: waterproof leather/mesh upper Sperry WaterBlock breathable waterproof membrane that keeps feet dry and comfortable adaptive Wave-Siping disperses water underfoot to reduce slippage lace-up closure for an adjustable yet secure fitremovable compression molded EVA footbed maximizes comfortdurable outsole Imported.