The Tough-Flex Knee Pad Sleeves, Nos. 60628, 60629, 60630, and 60850, from Klein Tools, have a low-profile sleeve design that keeps the knee pad close to the user's body for comfortable all-day wear. The TPE cap is engineered to be tough and flexible for agility and protection when moving side to side on the job site. A gel-like foam padding system offers comfort for prolonged kneeling, and the durable, polyester sleeve material protects the user during rugged jobs. An elastic cuff with slip-resistant silicone helps knee pads stay in place longer. The knee pad sleeves are offered in four sizes.