Sperry Men's 7 Seas 3-Eye Boating Shoe 100% Textile and Synthetic Imported Rubber sole Non-marking, rubber outsole with Razor-Cut Wave-Siping for traction on wet surfaces. Terrain Traction Pods for enhanced grip on land. 360 Lacing System for a secure fit. MocFit construction cradles your foot in a minimalist design. SeaBound integrated energy return system provides underfoot cushioning.