Race Face Ambush Knee Guards Maximum coverage for the biggest trails For hitting the most technical terrain at the highest speeds, the Race Face Ambush Knee Guards offer robust protection from whatever the trail throws your way. These tough-as-nails guards boast cutting edge D30(R) T5 Evo X certified foam, which helps to absorb and dissipate impact forces during a crash, providing some of the best knee protection available. For more peace of mind for the impacts at unusual angles, the Ambush Knee Guards also feature EVA foam padding on the sidewalls and above the D30(R) guard, for added protection from the unexpected. The perforated neoprene construction with an open back design provides plenty of airflow, keeping you cool during extended pedaling sections or the hottest DH trail runs. Features D30(R) T5 Evo X certified foam absorbs and disperses impact forces for exceptional crash protection EVA foam sidewalls and above-the-knee padding for additional coverage from impacts at odd angles Breathable, perforated neoprene construction with an open back design improves airflow for those hot downhill sessions Hook and loop adjustment straps at the thigh, upper and lower calf for a secure fit Abrasion-resistant outer cover for increased durability Sizing Size XSSmall Medium Large XLXXLThigh Circumference (in)14. 5 - 15. 5"15. 5 - 16. 5"16. 5 - 17. 5"17. 5 - 18. 5"18. 5 - 19. 5"19. 5 - 20. 5"Calf Circumference (in)11. 5 - 12. 5"12. 5 - 13. 5"13. 5 - 14. 5"14. 5 - 15. 5"15. 5 - 16. 5"16. 5 - 17. 5" | Race Face | Ambush Knee Guards Men's | Size Medium In Stealth