For serious trail riding or light DH, the POC Joint VPD Air Knee Guard provides just the right amount of protection without making you feel like you are wearing combat attire. It has been designed to be particularly lightweight and breathable, which is ideal for riders in hotter climates and those who want complete freedom of movement. The VPD Air padding is super flexible and highly ventilated which belies how protective the guard is. The pad is held in place by a reinforced stretch fabric that is prevented from budging thanks to the anti-slip neoprene inner linking. And an external elastic strap with Velcro fastening acts as the ultimate security against slippage. The low profile design along with the moveability and ventilation will quickly help you forget you are even wearing knee guards.