At the end of a long work day, you'll appreciate the quality that goes into Carhartts 6-inch blucher work boot (black)/safety toe. Crafted from oil-tanned leather with a waterproof membrane, its Vibram rubber outsole resists oil, chemicals and slips. For comfort, it features an OrthoLite insole, padded collar and OrthoLite comfort tongue. Performance features include a molded TPU (thermoplastic polyurethane) heel counter, achilles flex joint and EVA (ethylene vinyl acetate) midsole. Built with a safety toe, the boot is ASTM 2413-05, EH rated.