Fox's most technologically advanced leg protection for MTB. Features Fox patent pending 'X-Up' strapping system. This system locks in on both sides of your knee, preventing any twisting or slipping. Ribbed hardshell kneecaps and asymmetrical hard shell shin plates provide impact protection.
Open back keeps these guards from being too hot. They don't shift on me and the articulating knee makes you forget they're even on. They lose a star for the plastic tabs though. They're holding up after 8 months of weekly riding.
These are great. I bought a pair and used them for 4 years. They fit right over your leg or riding pants and only take 15 seconds to put on. No neoprene sleeves that wrap around your knee and get smelly. The only issue was the plastic clips that fasten the knee cover on became worn and they would become undone during rides at times. So I'm buying them again and I plan on nursing the knee cover clips a little more. Over all, great product, comfortable and provide the protection you need. I give them 4 stars because the knee cover tabs could be made from metal or carbon fiber so they last forever.