On
Cloudboom Max
A high-stack, glass-fibre-plated shoe aimed at marathoners finishing in four hours or more. It is stable and comfortable but heavy and blocky, closer to a plated max trainer than a racer.
Long runsMarathon (recreational)

Where to buy the Cloudboom Max
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On storeCloudboom Max
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RRP around £220. Tap through for today's price.
What Reddit runners say
Runners on Reddit don't hold back. Jump straight into the conversations about the Cloudboom Max.
What it feels like
stablefirm
FirmCushionPlush
MutedBounceSpringy
LowStackTowering
Fit
True to size
Generally true to size with a wide, anatomical toe box; one tester found it short, so try before buying.
standard
What the critics say
- Stable, centred ride
- Roomy toe box
- Durable outsole with good wet grip
- Heavy and expensive
- Stiff, clunky transition with little pop
Paraphrased from published reviews. Read them: Doctors of Running, Believe in the Run.
Video reviews
Watch On Cloudboom Max reviewsOpens YouTubeOwners say
Owner reviews for this one are still coming in. Read what buyers are saying.
On Instagram
#oncloudboommaxSee how runners are wearing itThe numbers
- Type
- Super trainer
- Weight
- 296 g
- Heel stack
- 40 mm
- Drop
- 8 mm
- Plate
- Plate / rods
- Support
- Neutral
Men's sample size.
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