Full grain SPR leather. Georgia waterproof system. High performance mesh lining. Combination eyelet/hook hardware. Comes with a second set of neutral colored laces. Molded collar for superior comfort. AMP LT insole with memory foam. Fiberglass shank. ASTM F2892 electrical hazard standard. Heat, chemical, abrasion, and slip-resisting dual-density EVA and Carbo-Tec rubber outsole.