Fire resistant durable rough-out leather upper - Breathable moisture-wicking mesh lining - Lightweight mountaineering-inspired athletic design - Full-length polypropylene board with integrated steel shank for optimal rigidity and stability underfoot - Strength and durability of handcrafted opanka-stitch construction - Cushioning single-density open-cell polyurethane OrthoLite footbed - Vibram S587 Fire & Ice outsole for oil- and slip-resistant traction over rugged and high-angle terrain - NFPA 1977: 2011 edition certified - Electrical hazard protection ASTM F2892-11 EH - Soft toe (not a safety toe)