Columbia Women&#39;s BL3583 Daska Pass Omni-Tech Hiking and Backpacking Boot,Cordovan/Tahiti,7 M US,Columbia" /> Nubuck and synthetic Equiped with the highest level of protection and comfort for the highest Omni-Tech waterproof breathable membrane provides a comfortable and dry environment Gussetted tongue to keep debris out Polyurethane midsole with metal shank provides maximum torsion for uneven terrain Removable Contour Comfort 3D with AgION anti-odor control for multi-day wear