The Pro Shade System mounts on the outside of the helmet, and it will not negatively affect the performance of the helmet. The Pro Shade System is a peak that locks into position, with easy unlocking by pulling the shade peak forward. It can be flipped down with the flick of a hand, to perform as a sun visor. It offers protection against sun glare, fogging and misting, perfect for touring riders or riders that prefer an upright seating position.