Fox Enduro Pro Knee Guards Rugged protection for technical rides The Fox Enduro Pro Knee Guards provide uncompromising protection for risk-taking riders who crave the fastest descents and chunkiest rock gardens. The Enduro Pro Knee Guards balance critical protection from big hits, with the pedaling and bike-handling mobility that riders need. The slip-on Lycra sleeve reduces bulk, with a breathable nylon mesh rear panel for increased airflow. The silicone-printed grippers at the top and bottom of the guards keep the sleeves in place, no matter how technical the terrain gets. The D30(R) inserts offer high-tech impact protection, with a flexible design that hardens on impact. These guards offer the best of both worlds for riders who demand maximum protection that doesn't slow them down. Features D30(R) protective inserts provide high-tech protection from impacts, with a flexible design that hardens on impact Moisture-wicking micro-Lycra sleeve moves with the rider Slip-on design with silicone printed bands at the top and bottom of the guards for a secure fit over technical terrain Nylon mesh rear panel increases airflow Sizing Size Small Medium Large XLThigh Circumference (4" above knee) (in)15. 5 - 16. 5"16. 5 - 17. 5"17. 5 - 18. 5"18. 5 - 19. 5"Calf Circumference (fullest part) (in)13. 5 - 14. 5"14 - 15"14. 5 - 15. 5"15 - 16" | Fox Apparel | Enduro Pro Knee Guard Men's | Size Extra Large In Black | Nylon