Our boots are crafted from full-grain, 5.5 – 6 ounce oil-tan, veg-tan or chrome-tanned tier one cowhide leather. The insoles and midsoles are 100% leather. For stitching the outsole, we use natural linen thread that is wax-lined. All Vibram soles we use, including the model 100 lug and 700 nitrile, are anti-slip and resistant to oil and chemicals. Our boots feature steel shanks, nickel-plated brass eyelets, and reinforced toes and heels (counters) as key components.