QEP's F3 Stabilizer Knee Pads form, fit and flex to keep your knees protected during every job. These knee pads feature a 5 layer comfort system that provides cushion for your whole knee. These layers are: A Memory foam that conforms to the shape of the knee for a custom fit, a neoprene inner liner, an XL Patella Gel Zone with extended core for total knee support, Power-Flex Support Pads, and a soft cap stabilizer for hard or soft surfaces. These knee pads feature micro hook and loop fastening technology down the length of the strap for a perfect fit, and a pull tab for easy removal.