Lightweight and flexible padding that is barely noticeableideal for riders who want complete freedom of movement and reliable protection. The VPD Air padding is both highly flexible and highly ventilated for optimal freedom of movement, comfort and temperature control. The pad is housed in reinforced stretch fabric that stays securely in place thanks to an inner lining of anti-slip neoprene and an elastic strap with velcro fastening. A low-profile design further supports practicality and comfort, enhancing the barely-there feel of the pads. Lightweight and impact absorbing VPD compound Reinforced stretch fabric Elastic strap for a comfortable fit Circumference 10cm above the knee: S 37-41 cm M 41-45 cm L 45-49 cm