Twisted X® 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 a their 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. Full-grain Leather upper CellStretch technology utilizes cells in the forefoot and heel to provide superior cushioning and comfort Nano toe (ANSI: ASTM F2413-18 M/I/C EH) Nylon laces Waterproof lining Leather heel tab Blend85 footbedmade with 85% recycled foam ecoTWEED footbed lining made from recycled plastic bottles Double-stitched storm welt and nylon/glass fiber shank EH-rated oil- and slip-resistant blown rubber outsole with 1.25" tall block heel Product Features: Waterproof:Yes Outsole:EH-rated oil- and slip-resistant Blown Rubber with 1.25" tall block heel Upper:Full Grain Leather Height:6" Lining:Waterproof Toe Protection:Nano toe (ANSI: ASTM F2413-18 M/I/C EH) Support (shank):Nylon/Fiberglass Footbed:Blend85 made with 85% Recycled Foam; ecoTWEED lining made from Recycled plastic bottles Twisted X Men's 6" Waterproof Nano Composite Safety Toe CellStretch Work Boot