Upper: Full Grain Oil-Tanned Leather. Construction: Goodyear Storm Welt. Lining: Comfort Weave. Insole: Contoured, Cushion Polyurethane Removable Footbed. Midsole: Rubber. Shank: Steel Ribbed. Outsole: Oil and Slip Resisting Rubber Lug. Special Features: Padded Collar and Tongue, Reinforcement Sole Screws.