These Tech X boots offer one-of-a-kind comfort and style Leather vamp, leatherTWX shaft made from 80% recycled leather 85% recycled foam Blend85 footbed Air mesh lining CellStretch Comfort Technology responds by activating more than 100 individual pressure points of cloud-like comfort in the heel and ball of the foot Compression molded EVA midsole integrated with molasses; a natural filler that reduces the amount of EVA used Taped interior seams Nylon/glass fiber shank Approximately 1 1/2 inch block heel Rubber outsole Integrated spur shelf Double stitched welt Twisted X Men's 12 Inch Tech X Boot Dark Brown & Lion