Yvonne Van Vlerken is a World class athlete and is one of the few who has concluded the Ironman in less then 9 hours. In 2008 at the Quelle Challenge Roth she established the female World record in the Ironman in adverse atmospheric conditions. Yvonne has been the only woman who conquered a World record in both the half-Ironman distance and in the full Ironman distance. Yvonne chose to wear the triathlon helmet Wingspan which assure the maximum ventilation in the hot days, a perfect aerodynamic penetration and an absolut comfort thanks to its extreme compactness. The dutch champion wears in the time trial races also the triathlon sunglass Noyz Racing Pro which have adjustable temples and nosepiece to offer a comfortable fit in bicycle and running. Yvonne wears in the cycling section the aerodynamic compact and hyper-vented Wingspan Time Trial helmet.