Fly Racing Lite Adult Elbow Guard Fly Racing Racing’s HDM (High Density Memory)protectors are made of a special blend viscoelastic foam with memory function allowing for repeat impacts. Soft, lightweight and low profile to ensure performance and comfort, even on long days pedaling in the saddle. Strategically placed ventilation holes help flow cooler air into and through the pads. 4 way stretch mesh panels at the rear help in giving a great fit and allowing hot air to escape keeping the pad feeling cooler. Extended upper cuffs help to keep the pads slipping down during use. Hidden stitching of the protector to the fabrics, protects it from fraying and being caught and torn in a crash, adding to the durability. Internal silicon gripper bands are used at the upper and lower opening of the pad.