Get free shipping and sales for the Columbia Mckenzie River Chukka Black Footwear Classic chukka styling and support from Contour Comfort cushioning combine to create the casual yet ornate Mckenzie River Chukka by Columbia. Full-grain leather upper and opanka handsewn construction add comfort and superior flexibility. Front lace-up closure. The Contour Comfort 1D footbed interacts with the natural contours of the foot to provide ultimate support and comfort. The midsole consists of PU that absorbs shock while providing excellent stability. The non-marking Omni-Grip rubber outsole is super sticky and designed to provide superior traction and stability on wet and dry surfaces.