Step Propel Footbed: designed to store energy and release it back to your feet with every step, through thousands of small, ultra-compressed beads. CarbonShield Technology: Engineered with nanotechnology, adds strength and unmatched protection, provides a better fit and reduces weight with a lightweight, non-metallic, asymmetrical-shaped toe cap that meets US and Canadian safety standards including ASTM F2412-18a and ASTM F2413-18 I and C impact and compression safety standards and CAN/CSA-Z195-14 Grade 1. Waterproof Membrane: Delivers maximum waterproof protection and meets ASTM F1671-07 safety standard. All-Weather TPU Outsole: Specially-formulated thermoplastic urethane compound designed to maintain flexibility in variable weather conditions, providing enhanced traction on wet and frosted ice surfaces, plus slip, oil and abrasion resistance. Electrical Hazard Protection: Provides secondary underfoot protection against live electrical circuits, electrically energized conductors, parts or apparatus and meets ASTM F2412-18a, ASTM F2413-18, ASTM F2892-18 and CAN/CSA-Z195-14 standards.