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 foam provides industry leading underfoot comfort and flexibility while being durable enough for the harshest environments. Timberland PRO FLEX : technology gives you full range of motion without resistance with features like anatomically positioned flex grooves under your foot and durable fabrics that stretch above your foot ensure your shoes will work with you in every step. Composite Safety Toe: a 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. Waterproof Membrane: delivers maximum waterproof protection and meets ASTM F1671-07 safety standard.