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On Cloudboom Strike 2(2026)

In production · road · Race day · $290

On finally nails the super shoe: light, rockered and genuinely fast.

Built for race day, at a target pace of 4:50–7:00 /mi on road.

The spec sheet

Weight
204 g / 7.2 oz
Heel stack
39 mm
Drop
4 mm
Plate
Carbon
Cushioning
4 / 5
Energy return
5 / 5
Responsiveness
5 / 5
Rocker
5 / 5
Flexibility
2 / 5
Stability
4 / 5 (5 = most guidance)
Toe-box
Narrow
Sizing
True to size
Durability
~200 mi
Price
$290

How it rides

The foam

On tuned this midsole soft (4/5 on our cushioning scale). The foam is highly resilient — it gives energy back rather than swallowing it, which is what makes the shoe feel eager when you push. 39 mm of heel stack is the modern daily-trainer sweet spot — enough foam for long miles without losing contact with the road. Combined, the ride reads as explosive at 5/5 responsiveness.

The plate

A full-length carbon plate stiffens the forefoot and works with the foam as a lever: it smooths the transition off the toes and cuts the effort of holding fast paces. It also asks for speed — at easy paces a carbon plate feels stiff and does little for you, and it is the main reason super-shoes wear out sooner than trainers.

The geometry

A low 4 mm drop encourages a midfoot landing and keeps the ankle working through a fuller range. The rocker is aggressive: the sole is curved and stiff enough to tip you into the next stride on its own, which saves the calf on long runs but feels strange when you slow right down. The forefoot is stiff, so it rolls rather than bends — a lever, not a slipper. It offers real guidance through the gait cycle — useful for runners whose form collapses when tired.

Fit, sizing & life

The toe-box is narrow and performance-oriented; wide-footed runners should try before buying. It fits true to size. Expect roughly 200 miles from the outsole, about $1.45 per mile at $290.

For the foams and plates On uses across its line, read the On brand guide.

How it compares

Measured against the 542 currently-available shoes in the catalog. The bar shows where this shoe sits in that range.

Weight

204 g / 7.2 oz

71 g lighter than the catalog median of 275 g

Heel stack

39 mm

3 mm taller than the catalog median of 36 mm

Drop

4 mm

2 mm lower than the catalog median of 6 mm

Price

$290

130 pricier than the catalog median of 160

Responsiveness

5 / 5

Catalog median 3 / 5

Cushioning

4 / 5

Catalog median 4 / 5

Energy return

5 / 5

Catalog median 3 / 5

Durability

~200 mi

Catalog median ~400 mi

Within the On line it is lighter than the brand's median (270 g / 9.5 oz) and sits taller than its median stack (34 mm).

Closest alternatives

Current shoes with the nearest combination of weight, stack, drop, foam feel and plate.

On Cloudboom Strike(2024)

210 g / 7.4 oz · 40 mm · 4 mm drop · Carbon · $290

On's carbon racer: light, snappy, narrow and unmistakably a race shoe.

New Balance FuelCell SC Elite v6(2026)

212 g / 7.5 oz · 40 mm · 4 mm drop · Carbon · $250

Lower-drop, Vaporfly-like sixth-gen marathon racer with a smoother toe-off.

Mizuno Wave Rebellion Pro 3(2025)

218 g / 7.7 oz · 40 mm · 4 mm drop · Carbon · $250

Extreme rocker with a cut heel — aggressive forward tipping at race pace.

On Cloudboom Strike LS

190 g / 6.7 oz · 38 mm · 4 mm drop · Carbon · $330

Spray-on upper and carbon Speedboard — On's flagship marathon racer.

Adidas Adizero Adios Pro 5(2026)

173 g / 6.1 oz · 39 mm · 4 mm drop · Carbon · $275

ENERGYRIM carbon rim replaces the rods, freeing more Lightstrike Pro underfoot — 12% lighter than the Pro 4 and steadier at toe-off.

Lineage & siblings