Polyblend with nitrile for superior resistance to fats, oils and chemicals. Use in oil rigs, refineries, food processing, general industrial areas, lawn care, dairies, breweries and utilities. 100 Percent waterproof, polyblend PVC compound for superior resistance to fats, oils and chemicals. Power-lug outsole provides superior wear resistance, slip-resistance and cushioning for indoor traction. Removable air cushion insole for added comfort. Steel shank for firm arch support. Kick off lugs for easy removal. Power-lug outsole unique dual compound multi-tread provides excellent slip resistance and wearer comfort.