The Men's 10" Waterproof Nano Composite Safety Toe CellStretch® Work Boot showcases true comfort and safety. Handcrafted in full-grain leather, this boot features a Nano Composite Safety Toe made by weaving together carbon nanotubes to create one of the strongest and lightweight safety toe options available. For stability and comfort, Twisted X® has combined a our patent-pending CellStretch® comfort technology, Blend85™ recycled foam footbed, and a nylon/glass fiber shank. The EH-rated oil and slip resistant rubber outsole with a 90-degree heel provides durability and improved traction for whatever your day may bring. Twisted X® Work footwear provides all the comfort, stability, and durability that you need to outperform any demanding work environment.