On’s ultrafast Cloudboom Strike, now with their lightest LightSpray™ upper.

KEY FEATURES

• Weight: 170g

• LightSpray™ technology for On’s lightest-ever upper

• Made without a 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

• Lace-free construction minimizes distractions.