Columbia Men's Laman Peak Omni-Tech Hiking Boot 100% Textile and synthetic Features Omni-Tech waterproof and breathable membrane Contour comfort 2D footbed with AgION anti-odor treatment Injection-molded, full-length polypropylene lasting board Poured polyurethane midsole with metal shank for torsional rigidity and support Vibram rubber compound outsole with aggressive lug tread pattern