You'll be ready for even the most extreme conditions at sea with this world class sailing shoe from Sperry Top-Sider that's been built for high performance! ; Uppers of man-made leather with breathable mesh inlays. Hydrophobic upper materials and linings for quick drying comfort. ASV patent pending technology for superior protection from shock and vibration forces at sea. Compression molded EVA midsole for added cushioning and comfort. The outsole offers superior traction with HydroGrip rubber and Adaptive Wave Siping for ultimate wet and dry comfort. Measurements: ; Weight: 13 oz ; Product measurements were taken using size 11, M (D). Please note that measurements may vary by size.