The ZXT Insulator III is 100% waterproof and constructed of a premium ZXT rubber compound with a high tensile strength for greater tear resistance and durability. The canvas lining, 9mm wool-felt insole and foam insulation offer warmth, and the Trac-Lite outsole delivers all-around traction in mud, snow and other loose terrain. Reinforced rubber at leg and belly patch adds durability, and the steel shank provides durable support. Removable EVA footbed provides additional comfort and support. Steel shank. (Suspenders need to be ordered separately.)