This 9" Crazy Horse Leather supper logger boot steel toe features a waterproof membrane 200G thinsulate with a one piece logger sole and electric hazard sole, it is also Goodyear Welt Construction. Crazy Horse Leather, Goodyear Welt Construction, Broad Steel Toe, Waterproof Membrane, 3M, 200G Thinsulate, One Piece Logger Sole, Electrical Hazard Sole