SLAYCO96 KNEE PAD LG/XLRMF Reactive Memory Foam is soft and pliable in its natural state but hardens when force is applied to it, providing a protective barrier that meets CE 1621 1 LEVEL 2 protection BIO FOAM Molded bio foam bordering the knee cup and shin provides increased impact protection while the strategically placed bio foam wing promotes bike hugging inner and outer knee protection TRAC GRIP Tacky silicone grippers are strategically placed in key areas to help hold