Made from high quality polyurethane (PU) for exceptional durability, Triumph knee boots are up to 30% lighter than most PVC and rubber steel toe knee boots and are 100%waterproof. A full-length sock liner, flexible upper, and removable, contour insole deliver exceptional comfort. This 15" knee boot features a 12" cutline to allow wearers to customize the boot height. The smooth exterior easily sheds fats, liquids, and oils and is easy to decontaminate, while the Sure Grip multi-purpose cleated outsole provides excellent slip resistance on dry, wet-clean, and we-contaminated surfaces and is self-cleaning. Yellow. Meets ASTM F2413 M I/75 C/75.