The waterproof construction and rugged outsole on the Hi Tec Altitude can handle wet and slippery terrain.. ?. . . Waterproof Nubuck leather upper. MDT carbon-rubber hiking outsole grips to any terrain. Fully gusseted tongue keeps out debris. Removable insole contours to your feet for a custom fit. Injection molded EVA midsole provides lightweight cushioning. Rustproof hardware holds up to rough wear and conditions. Soft, padded collar provides a snug, comfortable fit. Steel shank offers reliable stability. Seams are sealed for full waterproof protection. Weight: 19.3 oz..