Timberlands PRO® Helix HD work boots: The ultimate in lightweight comfort. These men's waterproof boots combine anti-fatigue technology with durable leathers to create work boots that are tailor-made for long hours in tough conditions. The composite safety toe is lightweight, non-metallic, asymmetrical-shaped toe cap. Meets US and Canadian safety standards including ASTM F2412-11 and ASTM F2413-11 I/75 and C/75 impact and compression safety standards and CAN/CSA-Z195-14 Grade 1. The waterproof membrane delivers maximum waterproof protection and blood-borne pathogen resistance. Meets ASTM F1671-07 safety standards.