Ronhill Air-Lite Vizor The Ronhill Air-Lite Vizor is a super lightweight summer running vizor, perfect for marathons. The fabric of the construction is breathable and high-wicking, ensuring you stay cool throughout your activity. the vizor features Vapourlite technology that wicks excess moisture and transfers it to the outer layers of the fabric where it can be easily evaporated, ensuring you stay cool, dry and comfortable. In addition, the stretch adjustable fit means no more annoying velcro strap or other adjusting systems allowing you to just put it on and go.