The Klein Tools 60344 Hinged Knee Pads are designed for all-day comfort and protection for the toughest jobs. The top strap is positioned above the knee to keep the pad centered in place. The multi-layer gel-like padding system is designed to support the knees to reduce pressure and fatigue after all-day wear. Heavy duty synthetic rubber knee caps provide ultimate protection while allowing for side-to-side mobility. The quick-release clips and adjustable elastic straps allow for easy on/off.