Cushioning
Max
Max
Fast
Laceless
4mm
Weight: 170g
LightSpray™ technology for our 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.

An ultra-thin, second-skin fit that's seamless, with enough support for race day. How? A single 1.5km long filament is spun by robot to create a mesh-like upper. Which is breathable and elastic, with no need for laces. And, at just 30g, it’s the lightest upper we’ve ever made.

The revolutionary assembly process minimizes waste, eliminates the need for glues and produces 75% less CO₂ when produced at On Labs Zurich, compared to other On racing shoes.

Two layers of Helion™ HF hyper foam provide high energy return and impact absorption, with a pre-shaped, stiff carbon fiber Speedboard® sandwiched between, for powerful propulsion at every stride. And, we maximized traction on the outsole, by increasing the ground contact in key areas.