The men's  running shoes in white and flame feature LightSpray™ technology for On's lightest-ever uppers, made without sockliner to maximize Helion HF content, over 40% bio-based Helion™ HF hyper foam for high-speed energy return, CloudTec® elements create a faster, smoother roll-through, seamless and responsive second-skin fit, ultra-cushioned ride protects against impact, spoon-shaped Speedboard® to absorb and transfer energy, and lace-free construction minimizes distractions.