Oliberte Nkoto Men US 11 Brown Chukka Boot Leather Synthetic sole Shaft measures approximately 4.25" from arch Boot opening measures approximately 12" around The style name is Nkoto. The style number is 403011623. Brand Color: Brown (Main Color: Brown) Material: Leather Measurements: Shaft measures 4.25", Circumference measures 12" and 1" heel Width: D(M)