Extra support and added warmth in our 8-inch, insulated, blucher lace, work boot. The oil, chemical and slip-resistant dual-density PU (polyurethane) outsole is constructed with a direct-attached welt. The moisture wicking lining, waterproof, oil tanned, leather upper and breathable waterproof membrane keep your feet dry all day long. The molded TPU (thermoplastic polyurethane) heel guard, with an Achilles flex joint, protect and stabilize your heel and the OrthoLite insole, padded collar and OrthoLite Comfort Tongue keep you ultra-comfortable on the job. Insulated with 400 LiteFire insulation. This steel safety toe work boot is ASTM F2413-11, EH rated.