Premium waterproof leather with a waterproof membrane. Asymmetrical composite safety toe powered by Carbon Shield technology. Electrical shock protection. Vibram Fire & Ice outsole for durability, traction, and optimal performance in any temperature. Fiberglass shank for structural support. StepPropel footbed for shock absorption and energy return. Molded Vibram rubber toe. ExoSpine technology to provide lasting structure, durability, and improved heel fit. Breathable and moisture-wicking lining with antimicrobial treatment for odor control. Dual-purpose top hardware for lacing customization. Combination three-quarter Goodyear welt/cement heel construction.