The Men's 6" 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 our patent-pending CellStretch® comfort technology, Blend85™ recycled foam footbed, and a nylon/glass fiber shank. The EH-rated oil and slip resistant blown 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. -Leather vamp with 6" leather shaft -CellStretch® technology utilizes cells in the forefoot and heel to provide superior cushioning and comfort -Nano toe (ASTM F2413-18 M/I/C EH) -Nylon laces -Waterproof lining -Leather heel loop -Blend85™ footbed. Blend85™ footbeds are made with 85% recycled foam. Footbeds also feature ecoTWEED™ Lining. ecoTWEED™ material is made from recycled plastic bottles. -Double-stitched storm welt and nylon/glass fiber shank -Blown rubber midsole -EH-rated oil and slip resistant rubber outsole with 1.25" tall block heel