Made from high quality, chemical-resistant polyurethane (PU) for exceptional durability and comfort. Steplite X® boots are up to 30% lighter than most PVC and rubber knee boots, yet last up to three times longer. A full-length sock liner, flexible upper and removable, contour insole deliver exceptional comfort. The cleated, multi-purpose outsole provides excellent slip resistance on dry, wet-clean, and wet-contaminated surfaces.