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 CellStretch Comfort Technology responds by activating more than 100 individual pressure points of cloud-like comfort in the heel and ball of the foot Nylon/glass fiber shank Approximately 1 1/2 inch walking heel Leather outsole with a rubber heel cap Integrated spur shelf Double stitched welt Taped interior seams Twisted X Men's 11 Inch Tech X Boot Cocoa Blue