Full grain leather upper combined with RockFall Dual Original for excellent abrasion resistance on the upper. Padded tongue and collar for additional comfort and support. Thinsulate inner helps regulate temperature combined with a durable high wicking Cambrelle lining. Goodyear Welt constructed rubber outsole resistant to heat up to 300C, oil, plus certain chemicals, acids, and alkalis. Speed lacing system with metal front lace protector. Pierce resistant steel midsole