Chaco Men's Montrose Chukka Boot 100% Leather Imported Synthetic sole Shaft measures approximately 4.25" from arch Boot opening measures approximately 11.25" around Full-grain leather upper Waxed cotton laces with contrasting lace loop eyelets Jacquard webbing rear stripe Removable knit-lined luvseat pu footbed Non-marking crepe-inspired outsole featuring 75 percent natural rubber compound