Wesco Highliner 10" Lineman Work Boot Black - 9710100 Leather Shaft measures approximately 10 from arch Black, Lace-to-Toe, 10" #100 Vibram Sole 7 oz. full-grain leather, Leather side flap and Removable false tongue Non-corrosive, ribbed, slightly arched steel shank for comfort and maximum support Leather 10 - 10-1/2 iron (.219" thick) half-slip for added support in the arch Recessed metal heel breastplate (offers protection from climbing spurs) and Steel sideplate not available with #100 Vibram sole