Extreme conditions call for extreme equipment and our 10-inch PAC boot fills that bill. The oil, chemical and slip-resistant rubber outsole cushions your foot with a PU (polyurethane) midsole. The moisture wicking lining, waterproof, oil tanned, leather upper and breathable waterproof membrane keep your feet dry all day long. Extra protection of a PU (polyurethane) coating on the lower part of the foot adds additional protection from the elements and the heavy duty rubber toe cap is ultra wear resistant. 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 1000 LiteFire insulation. This composite safety toe work boot is ASTM F2413-11, EH rated.