On Cloudboom Strike LS

Who Are On Cloudboom Strike LS For?

This is a racer's shoe, built for experienced runners chasing personal bests over longer distances. If you have the strength and turnover to hold a genuine race pace, the Cloudboom Strike LS rewards you; if you want a plush daily trainer or a stable recovery shoe, look elsewhere in On's lineup. It suits confident half and marathon racers, not beginners still finding their footing.

Feelings and Experience

Underfoot the ride is bouncy and lively, with soft-yet-propulsive foam that springs back the harder you push. The carbon plate delivers a distinct forward roll that feels most natural once you're moving quickly — at easy jogging speeds the tall, narrow platform can feel tippy and a little unsettled. Transitions are quick and aggressive, best appreciated when you're truly racing.

Performance Specs

• Drop: moderate heel-to-toe offset — encourages an efficient, quick transition without forcing your gait.

• Cushioning: high, PEBA-class Helion HyperFoam — protective for long efforts without being maximal.

• Responsiveness: very high — driven by a full-length carbon Speedboard working with the springy foam.

• Stability: low — a tall, narrow neutral racing platform with no added pronation support.

• Pace: Optimal for 2:55–3:30 min/km (4:41–5:38 min/mile) — a true racing zone.

Best Distances and Maximum Speed

This shoe genuinely excels at the half marathon and full marathon, with the marathon as its sweet spot. The technology comes alive at the fast end, roughly 2:55–3:15 min/km (4:41–5:14 min/mile), where the plate and foam return the most energy.

Technologies and Materials

The midsole pairs PEBA-class Helion HyperFoam with a full-length carbon Speedboard for propulsion. The LS uses On's LightSpray upper — a sprayed, seamless one-piece build that saves weight but offers minimal structure, so security around the midfoot is snug rather than adjustable.