Amazon.com | Twisted X Men。Fabric type 100% Leather Origin Made in USA or Imported Sole material Rubber Shaft height Calf High About this item Full-grain leather upper with 12\" shaft and taped interior seams CellStretch technology utilizes cells in the forefoot and heel to provide superior cushioning and comfort Alloy toe (ANSI: ASTM F2413-18 M/I/C EH) Air-mesh lining Reinforced pull holes Description The Men\'s 12\" Alloy Toe Western Work Boot with CellStretch® is handcrafted from duraTWX® hybrid performance leather and a signature full-grain leather in traditional western profiles. These work boots are the first to feature Twisted X® patent-pending CellStretch® comfort technology, ensuring that every step you take is backed by superior comfort. They combine a compression-molded EVA midsole with integrated CellStretch® technology and a nylon/glass fiber shank for proper support. The outsole design has also been enhanced to achieve higher slip ratings needed in the work industry. Twisted X® Work footwear provides all the comfort, stability, and durability that you need to outperform any demanding work environment