Swiss engineering meets design perfection for the On Running Cloudnova Void. Meticulously crafted for tackling the most troublesome terrain, all thanks to its engineered ribbed mesh body that is a lightweight and durable choice for the uppers. Touches of minty green are spotted underneath its mesh overlays, tongue tab and eyestays, while On Running branded hits are allocated to the sidewall. Groundwork wise, the fit is packed CloudTec that keeps you light and aerodynamic on your feet. Rubber soles are also added into the mix, backing you up with sticky tread - on and off the tarmac. 3MD12181105, Textile & Synthetic Upper/Synthetic Sole.