Their 100% waterproof and breathable GORE-TEX lining teams with waterproof waxed, split-leather construction to keep your feet dry. 1,000-gram Thinsulate™ Ultra Insulation assures you of warm feet in the coldest weather. The removable polyurethane footbeds pad your steps. 900-denier nylon panels enhance the ruggedness of the exterior, and thermal-plastic box toes and heels give added protection. Steel shanks for stability and support. Air bob rubber outsoles provide excellent traction, and Goodyear® welt construction permits resoling. Height:11".