F3 Stabilizer Knee Pads with Memory Foam, Gel Cushion, Neoprene Fabric Liner and Pen StorageExperience ultimate comfort and protection with QEP's F3 Stabilizer Knee Pads. Each layer of these pads serves a specific function from Memory foam that molds to your knee's shape to a neoprene inner liner. The XL Patella Gel Zone and Power Flex Support Pads provide complete support, while the soft cap stabilizer keeps you stable on any surface. The micro hook and loop fastening technology and pull tab make for a secure fit and easy removal. Trust