With their premium Timberland® waterproof leather uppers and internal waterproof membranes, our Timberland PRO® Helix HD Composite Safety-Toe Wellingtons offer maximum waterproof protection and blood-borne pathogen resistance. Their Anti-Fatigue Technology footbeds offer shock absorption and energy return, while their breathable, moisture-wicking mesh linings are made of ReBOTL™ fabric containing at least 50% recycled plastic with an antimicrobial treatment for odor control. We added ExoSpine™ technology for lasting structure, durability, and improved heel fit. Plus, our heat-, oil-, slip-, and abrasion-resistant, non-marking rubber outsoles feature Ladder Lock™ heels that help grip ladder rungs. Engineered with nanotechnology, adds strength and unmatched protection. Lightweight, non-metallic, asymmetrical-shaped toe cap. Meets ASTM F2413 impact (I) and compression (C) requirements when tested to ASTM F2412. Delivers waterproof protection, and also provides blood-borne pathogen resistance as defined by ASTM F1671. Breathable membrane helps protect from diseases caused by blood-borne pathogens, as defined by ASTM F1671. Provides secondary underfoot protection against live electrical circuits, electrically energized conductors, parts or apparatus. Meets the ASTM standards F2413 and F2892 requirements when tested to F2412. A comfort system designed with shock absorbing, geometrical technology that returns energy back to the foot to deliver all day support and comfort. OrthoLite® comfort foam insoles are lightweight, provide moisture transport, antimicrobial function, and long-term cushioning. The ultra-breathable material won't break down or lose cushioning over time, keeping your footwear comfortable and supportive. Originally engineered for pull-on work boots, this technology provides lasting structure and durability, as well as improved heel fit. Heat-resistant, durable rubber compound offers enhanced slip, oil, and abrasion resistance. Meets the SR requirements of ASTM F2413, F2892, or F3445, when tested to F2913. Microban technology provides an extra layer of protection on footwear fabrics against unpleasant odors, stains, and deterioration caused by bacteria and fungus. Our waterproof footwear incorporates a variety of advanced waterproofing materials, treatments and processes. We start with waterproof leathers that are sealed as part of the tanning process; we then either seam-seal the footwear or use an internal waterproof breathable membrane to help feet stay dry. Tongues and zippers treated with durable water resistant coatings utilize integrated gussets, to further deter water entry.