These boots are made from high-quality, chemical-resistant polyurethane (PU) for exceptional durability and comfort. They also feature 30% less weight than standard PVC and rubber steel toe knee boots. Boots feature full-length sock liners, flexible uppers, and removable, contour insoles for exceptional comfort. The cleated, multi-purpose outsoles provide excellent slip resistance on dry, wet-clean, and wet-contaminated surfaces. Boots offer exceptional resistance to fats and oils, fuels, bleach, industrial salts, manure, and mild acids and alkalis. Use in food processing, dairy, meats, farm and agriculture, and petrochemical exploration and drilling.