On Cloudboom Strike

Who Are On Cloudboom Strike For?

The Cloudboom Strike is a dedicated race-day shoe for experienced runners chasing personal bests over longer distances. It rewards a strong, forward-driving stride and a genuinely fast pace, so it suits committed racers rather than beginners or anyone looking for a soft recovery-day cruiser. If your goal is easy miles or gentle rebuilding, look elsewhere in the lineup.

Feelings and Experience

Underfoot it feels lively and springy, with a resilient PEBA-based foam that snaps back when you load it and a firm carbon plate steering each toe-off. The ride comes alive as you accelerate — the aggressive rocker rolls you forward and transitions feel crisp — but at jogging speeds it can feel tall and slightly tippy, a common trait of race-tuned platforms. Warm up and commit to pace, and it settles into a smooth, propulsive stride.

Performance Specs

• Drop: 4mm heel-to-toe offset — a low, forefoot-friendly geometry that encourages a quick, efficient toe-off

• Cushioning: High, PEBA superfoam (Helion HF) — plush and protective without being max-stack

• Responsiveness: Very high — a full-length carbon Speedboard plus resilient foam drive strong energy return

• Stability: Low — tall neutral platform with no added pronation support

• Pace: Optimal for 3:00–3:30 min/km (4:50–5:38 min/mile)

Best Distances and Maximum Speed

This shoe genuinely excels from the 10K up through the half and full marathon, with the half marathon as its sweet spot. The technology works best when you hold roughly 3:00–3:20 min/km (4:50–5:22 min/mile); at those speeds the plate and foam feel effortless. Below race effort, much of that spring goes unused.

Technologies and Materials

The midsole pairs On's Helion HF PEBA-based superfoam with a full-length carbon Speedboard for propulsion, wrapped in a light, breathable engineered mesh upper. The outsole uses targeted rubber for grip where it matters. Weight and stack height aren't confirmed here, but expect a light, tall race build — and note the durability of thin racing outsoles is limited, so save these for key sessions and race day.