Servus 18822 Mens Black PVC Waterproof Knee High Work Boots 。Servus 18822 PVC knee-high work boots provide reliable waterproof protection and safety for demanding environments. These black boots feature a plain toe with a textured bumper for added durability and a deep-cleated outsole for superior traction on slippery surfaces. Designed with an ASTM F2892-18 EH rating, they offer electrical hazard protection in a lightweight, flexible construction. The seamless, injection-molded design ensures 100% waterproof performance, while the contoured heel cup reduces slippage for all-day comfort.