Ventilated Anti-Fatigue Technology: A comfort system designed to promote air-flow for better climate control and increased comfort while offering industry-leading shock-absorption and energy return via geometrical technology that delivers all-day support and cushioning. Metatarsal Guard: Meets US safety standards including ASTM F2412-18a and ASTM F2413-18 and CAN/CSA-Z195-14 metatarsal impact resistance. Composite Safety Toe: Lightweight, non-metallic, asymmetrical-shaped toe cap that meets US safety standards including ASTM F2412-18a and ASTM F2413-18 I and C impact and compression safety standards. Heat-Resistant Outsole: Solid Timberland PRO rubber compound outsole resists hot contact using EN ISO 20344:2004 8.7 testing standard at 572°F (300°C). 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 standards.