On Cloudboom Strike LS
On Cloudboom Strike LS: building consensus — a public grade is not available yet; synthesized so far from 5 reviews across 1 creator, freshest review Oct 4, 2026.
TL;DR
The On Cloudboom Strike LS is a genuinely innovative, ultralight racer that several reviewers call On's best yet — but it's also a divisive shoe with a polarizing fit and a firmer ride than its sibling. If you can tolerate the laceless upper and want a cutting-edge marathon shoe, it's worth considering; if you want easy on/off or a plush, bouncy feel, look elsewhere.
Photo: Running WarehouseVerdict
Score
Building consensus
1 of 3 creators and (5 of 10 primary mentions or 14 of 30 total mentions) so far
Verdict
No call yet
A grade will appear when the evidence is sufficient.
freshest review · Oct 4, 2026
Lowest price
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Best for
The On Cloudboom Strike LS is a premium, ultra-lightweight carbon-plate racing shoe built for going fast on race day. Reviewers praise its responsive, propulsive ride — describing it as a "really good all-pace racing shoe" that delivers a "nice amount of punch" with a "level of firmness that isn't at all harsh." It feels best at shorter race distances (5K–half marathon) but is comfortable enough for the marathon due to its protective cushioning. The unique Light Spray upper provides a snug, second-skin fit with no rubbing or pressure points, but the lack of laces and tricky entry make fit a potential risk — particularly for runners with wider feet. Best for neutral, narrow-footed competitive runners who value lightweight turnover and a direct, grounded feel at high speeds. The very high price is its main drawback.
Facts & figures
Evidence is still building
1 of 3 creators and (5 of 10 primary mentions or 14 of 30 total mentions) so far. The attributed reviews and editorial remain available while the grade is withheld.
What reviewers said
- Extremely lightweight — at about 6 oz it's one of the lightest shoes in the world (36347973).
- The robot-sprayed LS upper is a one-piece, laceless construction that The Run Testers praise for working well and saving significant weight (df714e0a, f318860a).
- Reviewers from The Run Testers consider it On's best racing shoe to date and say it holds its own against the broader market (3d63476e-ad39-4303-82b1-058df29db3f3, 0829913f).
- The laceless upper can be difficult to get on and off, and the fit is not always ideal (a01de095).
- kofuzi describes needing to "shoehorn" your foot into it (53137eb8).
The reviews behind this verdict
The cited creator reviews, watchable — press play to jump to the moment each one informed the verdict.
Road To Trail
“I didn't buy the on uh what are they called? The cloud boom light spray things. I didn't try those.”
cited at 8:00
Conversational Pace
“underfoot definitely fits that super trainer category. I think the foam dictates that for sure. Light, responsive, versatile. Uh most importantly, without the need for the carbon plate, I felt like I could touch my marathon paces quite easily in this shoe and it was supportive in that realm. Honestly, my only dislikes are just the the the heel collar issue and sizing.”
cited at 15:36
kofuzi
“11:55 vs On Cloudboom Strike LS”
cited at 11:55
The Run Testers
“the on cloud boom strike LS is the light spray version so this is the one that Helen oir wore at the Boston Marathon the Olympic marathon with the sprayed on upper which you know is made by a robot in a very short amount of time it looks very cool and how they make it and it's creates this one piece upper that you basically slip your foot into there's no laces or anything like that”
cited at 35:42
Yowana
“He said with 600 to go, his shoe was not fully on his foot. He said he called it a flat tire.”
cited at 1:14:30
TF XC Running Shoe Reviews (TF XC)
“this has a different fit from the Cloud Boom Strike LS. This one is lower cut around the ankle and not as tight”
cited at 0:00
kofuzi
“I preferred having this on foot for a 16-m long run with some marathon miles in that like 4 and 1/2 hour race pace type of effort. I preferred this over the Cloud Boom Max”
cited at 13:41
The Run Testers
“I know that um Nick's a big fan of the more recent um Cloud Boom uh Strike LS”
cited at 0:00
kofuzi
“I think a lot of you have probably seen this Lightspray material. It's an upper material that is sprayed on by a robot and it's extremely lightweight. There's no laces and you have to kind of shoehorn your foot into it”
cited at 10:57
The Run Testers
“The LS version is just a fair bit lighter because of that large spray upper, which I always get on really well with, but other people don't always find it so easy to get that shoe on and off and the fit's not always perfect”
cited at 5:36
The Run Testers
“I'm really excited to test out the On Cloudboom Strike LS if possible to see if the fact that's a fair bit lighter gives it that little bit more of an aggressive edge”
cited at 7:27
The Run Testers
“this is our first run review of the on cloud boom strike LS the cloud boom strike LS is the light spray version of the cloud boom strike which differs from The Standard Version because of this rather exciting upper they have on the shoe which is put together using a robot”
cited at 0:02
The Run Testers
“this is easily On's best racing shoe so far I do think it's a shoe that stands up well against the market at large”
cited at 5:14
The Run Testers
“I think the OnCloud Boom Strike LS from Mon's own lineup would be a pick that I would choose above it for a bit more energy”
cited at 8:08
The Run Testers
“the Light Speed upper that we saw introduced with the Cloudboom Strike LS racing shoe over 2 years ago now”
cited at 0:02
kofuzi
“They do have that Cloudboom Strike LS, but I feel like that's a shoe for me that's a little bit more aggressive than I'd like for my marathon racing.”
cited at 10:32
The Run Testers
“and the on cloud wi strike LS which again uh might have been higher if we'd all tested it”
cited at 32:26
Marathon Handbook
“I'm still waiting for Nike to release a generation defining shoe a shoe that's nothing like previous models something along the Innovation lines of the on cloud boom strike LS”
cited at 7:44
Yowana
“The Light Spray to me, it just felt firmer. It didn't feel as nice underfoot. It didn't have that same explosive bounce. So, a good shoe, but not a great shoe.”
cited at 18:02
Attention consensusa separate axis
How much the creator economy weighed this — distinct from the verdict, never folded into it.
563Ktotal review views
495Kcombined reachadditive across channels · may overlap
19creator reviews
attention vs the catalogtop 33% in class
attention over the product’s life
Why the grade is pending
Yeah is still building enough review evidence to publish a grade.
14 mentions
How creator opinions explain it
A theme-by-theme synthesis of creator opinions has not been published for this shoe yet.
Verdicts synthesize public creator reviews — not personalized. The reasoning explains the grade; it never computes it.