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40Race Shoe FinderEst. 2023 · London

Head to head

adidas Adizero Adios Pro Evo 2vs
On Cloudboom Strike

Adizero Adios Pro Evo 2

approx £296

Estimated street price · £450 RRP

39mm — road legal
Cloudboom Strike

£175

Typical street price · £270 RRP

39mm — road legal

Choose the Adizero Adios Pro Evo 2 if…

  • You want the bigger return: 3.8–5% economy gain against 3–4.2%, and that gap widens the longer you are out there.
  • You want the lighter shoe: 138g against 195g, a 57g difference you will feel late in a race.
  • You race off a strong, repeatable stride and want the more aggressive ride rather than the safer one.
  • You would rather buy on measured numbers: this shoe's specs are manufacturer-confirmed, the Cloudboom Strike's are estimated.

Choose the Cloudboom Strike if…

  • You want something more forgiving. This is the steadier platform — useful if your form goes late, or if you are on your feet longer.
  • Money matters: it is selling around £175 against £296, and the time difference between them is smaller than the price difference suggests.
  • You want more races out of one pair: about 250km of competitive life against 120km.

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
Adizero Adios Pro Evo 2: 206s–286sCloudboom Strike: 152s–233s
Cost per second saved
Adizero Adios Pro Evo 2: £0.63Cloudboom Strike: £0.23

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.

010203040503936
Adizero Adios Pro Evo 2
010203040503933
Cloudboom Strike

What you pay

Street price
Adizero Adios Pro Evo 2~£296
Cloudboom Strike£175■

A tilde marks an estimate: no shop we read is currently listing that shoe, so the figure is RRP less the discount comparable shoes are actually selling at.

RRP
Adizero Adios Pro Evo 2£450
Cloudboom Strike£270

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

Cost per race
Adizero Adios Pro Evo 2£156
Cloudboom Strike£44■

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

Cost per second saved
Adizero Adios Pro Evo 2£0.63
Cloudboom Strike£0.23■

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

What it does

Estimated saving
Adizero Adios Pro Evo 2206s–286s■
Cloudboom Strike152s–233s

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

Economy gain
Adizero Adios Pro Evo 23.8–5%■
Cloudboom Strike3–4.2%
Built for
Adizero Adios Pro Evo 2Half · Marathon
Cloudboom StrikeHalf · Marathon
Best use case
Adizero Adios Pro Evo 2The lightest marathon shoe ever sold and, on the evidence, the fastest. At 138g it is closer to a track spike than a road shoe.
Cloudboom StrikeA genuinely competitive marathon racer and the first On shoe that belongs in this conversation on merit.

How it is built

Weight
Adizero Adios Pro Evo 2138 g■
Cloudboom Strike195 g

Manufacturer figure at men's US 9.

Stack (heel)
Adizero Adios Pro Evo 239 mm
Cloudboom Strike39 mm
Stack (forefoot)
Adizero Adios Pro Evo 236 mm
Cloudboom Strike33 mm
Drop
Adizero Adios Pro Evo 23 mm
Cloudboom Strike6 mm
Foam
Adizero Adios Pro Evo 2Lightstrike Pro
Cloudboom StrikeHelion HF
Plate
Adizero Adios Pro Evo 2carbon fibre
Cloudboom Strikecarbon fibre

Rules and fit

Road legal
Adizero Adios Pro Evo 2Yes (39 mm)
Cloudboom StrikeYes (39 mm)

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

Fit
Adizero Adios Pro Evo 2narrow
Cloudboom Strikenarrow
Stability
Adizero Adios Pro Evo 2demanding
Cloudboom Strikebalanced

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

Race life
Adizero Adios Pro Evo 2~120 km
Cloudboom Strike~250 km■

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

Data confidence
Adizero Adios Pro Evo 2verified■
Cloudboom Strikeestimated

■ 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

No retailer we can read publishes a live price for this shoe, so we cannot check your size. The links below go to each retailer’s own search, where they show the current price and what they hold.

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£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.