Anti-Fatigue Technology: A comfort system designed with shock-absorbing, geometrical technology that returns energy back to the foot to deliver all-day support and comfort. HoverSpring: Our proprietary lightweight HoverSpring foam provides industry leading underfoot comfort and flexibility while being durable enough for the harshest environments. 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. Slip-Resistant (SR): meets the SR requirements of ASTM F2413, F2892, or F3445, when tested to F2913. Rubber Outsole: Heat-resistant, durable rubber compound offers enhanced slip, oil and abrasion resistance.