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40Race Shoe FinderEst. 2023 · London

Head to head

On Cloudboom Strikevs
Saucony Endorphin Elite 2

Cloudboom Strike

£175

Typical street price · £270 RRP

39mm — road legal
Endorphin Elite 2

£149

Typical street price · £250 RRP

39.5mm — on the limit

Choose the Cloudboom Strike if…

  • You have a narrow foot and want to be locked in.

Choose the Endorphin Elite 2 if…

  • You want a conventional fit rather than a narrow or wide last.
  • You would rather buy on measured numbers: this shoe's specs are manufacturer-confirmed, the Cloudboom Strike's are estimated.

What does this
mean for you?

Every figure below is recalculated from your race and your current time. The gap between two shoes is not fixed — it grows with how long you are on your feet.

Over marathon from 3:45:00

Time back
Cloudboom Strike: 152s–233sEndorphin Elite 2: 152s–233s
Cost per second saved
Cloudboom Strike: £0.23Endorphin Elite 2: £0.20

Ranges, not promises. Both figures are against a standard trainer, and the honest answer for most runners is that the difference between two shoes of this class is smaller than the difference a month of decent training makes.

Every number.

010203040503933
Cloudboom Strike
0102030405039.531.5
Endorphin Elite 2

What you pay

Street price
Cloudboom Strike£175
Endorphin Elite 2£149■

What the shoe is actually selling for across the shops we read, not its RRP.

RRP
Cloudboom Strike£270
Endorphin Elite 2£250

List price. Almost nobody pays it for a race shoe.

Cost per race
Cloudboom Strike£44
Endorphin Elite 2£39■

Street price divided by the races the foam stays fast for.

Cost per second saved
Cloudboom Strike£0.23
Endorphin Elite 2£0.20■

The whole-life question: what each second of race time costs you.

What it does

Estimated saving
Cloudboom Strike152s–233s
Endorphin Elite 2152s–233s

Against a standard trainer, over the distance and time set above.

Economy gain
Cloudboom Strike3–4.2%
Endorphin Elite 23–4.2%
Built for
Cloudboom StrikeHalf · Marathon
Endorphin Elite 2Half · Marathon
Best use case
Cloudboom StrikeA genuinely competitive marathon racer and the first On shoe that belongs in this conversation on merit.
Endorphin Elite 2Superseded by the Elite 3, which means it is now one of the best-value top-end racers you can find if you catch it discounted.

How it is built

Weight
Cloudboom Strike195 g■
Endorphin Elite 2199 g

Manufacturer figure at men's US 9.

Stack (heel)
Cloudboom Strike39 mm
Endorphin Elite 239.5 mm
Stack (forefoot)
Cloudboom Strike33 mm
Endorphin Elite 231.5 mm
Drop
Cloudboom Strike6 mm
Endorphin Elite 28 mm
Foam
Cloudboom StrikeHelion HF
Endorphin Elite 2IncrediRUN
Plate
Cloudboom Strikecarbon fibre
Endorphin Elite 2carbon fibre

Rules and fit

Road legal
Cloudboom StrikeYes (39 mm)
Endorphin Elite 2Yes (39.5 mm)

World Athletics caps road racing shoes at 40 mm of stack.

Fit
Cloudboom Strikenarrow
Endorphin Elite 2standard
Stability
Cloudboom Strikebalanced
Endorphin Elite 2balanced

Neither is better in the abstract — it depends on your stride.

Race life
Cloudboom Strike~250 km■
Endorphin Elite 2~240 km

How long the foam stays fast, not how long the shoe survives.

Data confidence
Cloudboom Strikeestimated
Endorphin Elite 2verified■

■ marks the better figure where one is genuinely better. Fit, foam, drop and stability carry no mark — they depend on your foot and your stride, not on which shoe is superior.

In your size.

Where to buy

Your UK size

Best price today — some sizes£175at Fitstuff — £95 under RRP

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.

Where to buy

Your UK size

Best price today — some sizes£149at Startfitness — £101 under RRP

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.