On Cloudboom Strike
£175
Typical street price · £270 RRP
Typical of 2 listings at 1 shop we read.
- Weight
- 195 g (men's US 9)
- Stack
- 39 mm heel / 33 mm fore
- Drop
- 6 mm
- Plate
- carbon fibre
- Foam
- Helion HF
- Stability
- balanced
- Competitive life
- ~250 km
- Built for
- Half · Marathon
Verdict
A genuinely competitive marathon racer and the first On shoe that belongs in this conversation on merit.
■ Caution
Narrow through the midfoot even by racing shoe standards. Expensive for what it is against the Adios Pro 4.
Where to buy
Best price today — some sizes£175at Fitstuff — £95 under RRP
- Fitstuff£175 was £260Go to size at Fitstuff ↗
- Alexandra SportsPrice not published hereSearch at Alexandra Sports ↗
- AmazonPrice not published hereSearch at Amazon ↗
- OnPrice not published hereSearch at On ↗
- SportsShoesPrice not published hereSearch at SportsShoes ↗
9 retailer checks failed on the last run, so their prices are missing rather than wrong.
Prices are captured when the site is built and stamped with the time of that check. We never rank a retailer by what it pays us; where a link earns a commission it is marked sponsored and the price you pay is unchanged.
Legality by event
- Road racing
- legal
- Track events
- ■ +19.0mm over
- Field events
- ■ +19.0mm over
- Cross country (spiked shoes)
- ■ +19.0mm over
- Cross country (non-spiked)
- legal
- Race walking
- legal
- Mountain and trail
- no limit
Limits bind World Athletics Applicable Competitions; most club and local races apply no shoe rule at all. What that means in practice.
Reading — what would the Cloudboom Strike save you?
- Saving
- −2:32 … −3:53
- Projected
- 3:41:07
- Per race
- £44
- ~3.9 races in the foam
- Per second
- £0.23
- whole-life basis
Economy gain 3–4.2% v. a traditional flat, adjusted for pace and your current shoes. Full method.
Manufacturer-stated specs unless marked estimated · last reviewed 2026-08-13 · prices are UK RRP; check the retailer for the live figure.