Jim Green Razorback Men's Size 10 Boots Lightly used and excellent condition!!! MSG with any questions. -Double layer of leather (2.2mm full grain leather, lined with 1.6mm calf leather) -Water resistant properties (not waterproof) -Steel shank between the insole board and sole -Insole board is secured to the upper with a double stitched 2.2mm braided nylon cord Ideal for the outdoor worker or hiker requiring that extra bit of toughness