The Quarry USA is made of durable, waterproof full-grain leather superior traction and features debris release from the dependable oil and slip-resistant Vibram® Quarry outsole. Electrical hazard protection ASTM F2892-11 EH. Recraftable option extends the life of the boot with services including part replacement, leather care and restitching. Rugged hardware for secure fit and long-lasting performance. Triple stitched for uncompromising fit and superior protection. 100% waterproof and breathable GORE-TEX® membrane. Cushioning Fatigue Fighter footbed with memory foam insert. Fiberglass shank. Strength and stability of Danner's handcrafted stitchdown construction.