Boot Height: Approx. 16'' Tall. The ZXT Knee boot is 100% waterproof and constructed of a premium ZXT rubber compound with a high-tensile strength for greater tear resistance and durability. For colder environments, the 9mm wool-felt insole and foam insulation offers warmth. The Trac-Lite slip-resistant outsole delivers all-around traction in mud and other loose terrain. An extra rubber toecap and shovel arch guard provide additional protection, and the fiberglass shank and removable EVA footbed provide lightweight comfort and arch support.