ION Knee Guard Arcon LTThe First Of Its Kind When the mountain bike trails start to get gnarly, you'll want to wear protection to keep yourself safe. With a good pair of knee guards, your knees will stay protected without sacrificing your ability to move freely. The ION Arcon LT Knee Guard is a fully biodegradable L-2 protection pad in a sleeve construction. It is developed by RE ZRO and covers a 15% larger surface compared to standard CE-certified pads, including medial and lateral protection of the tibia head. The extended silicone grippers on the top and bottom keep the sleeve perfectly in place. Features Made from recycled Nylon and 4-way stretch abrasion-resistant Cordura fabric RE ZRO Pad that covers a 15% larger surface compared to standard CE-certified pads Extended silicone grippers on the top and bottom to keep the sleeve in place Laser cut venting holes provide ample airflow and cooling Sizing Size Small Medium Large Extra Large15cm Above knee (in)15. 75 - 18. 11"18. 5 - 20. 08"20. 47 - 21. 65"22. 05 - 25. 98"15cm Below Knee (in)11. 81 - 13. 78"14. 17 - 14. 96"15. 35 - 15. 75"16. 14 - 20. 08" | Ion | Arcon Lt Knee Guards Men's | Size Extra Large In Black | Nylon