Cole Haan Men's Grand Os. Chukka Boots Nubuck Black C12928 Casual Mens Shoes 13, This pair of Men's Chukka Boots have all-leather Uppers and Rubber & Leather Soles. They have minimal wear, and there are minimal markings on the uppers from wear. Looks like cigarette burns on the under soles, but they have been cleaned and we are not smokers.