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Buyer's Guide

On Running Cloud 5 Review & Sizing Guide

Published Updated

Buy a clearance Cloud 5 if you find your size at the original fit and want the signature speed-lacing slip-on; skip at premium resale and accept that On's quality on this model has gotten polarizing across 33-comment heel-blowout threads and CS complaints I expect $120 shoes to last longer than 5 months. I've had cheaper shoes last much longer (and I used to run more).

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Key facts

Status
Discontinued — replaced by Cloud 6 with wider fit.
Use case
Daily walking, light running, travel; not a serious training shoe.
Fit
Narrower lockdown than Cloud 6; speed-lacing system for slip-on convenience.
Outsole
CloudTec hollow pods; documented to chip and tear if walked on rocks or worn dragging.
Durability
300-400 miles is the realistic ceiling per owner consensus; not 500+.
Best buy
Clearance Cloud 5 or Cloud X if Cloud 5 sizes are unavailable.

Full breakdown

On Cloud 5 is the brand's most iconic lifestyle-leaning runner: a slip-on-friendly upper, CloudTec hollow-pod sole, signature speed-lacing, and a fit that owners describe as 'designed specifically for my foot.' On has now moved the line forward to the Cloud 6, which is wider and less locked-down, so Cloud 5 owners regularly hunt for replacement pairs and find the 6 disappointing a couple years ago I picked up a pair of On Cloud 5... They fit me like they were designed specifically for my foot. Perfect in every way. I recently tried to buy another pair and realized they don't make them anymore. Buy a clearance Cloud 5 if you fit it; skip at premium resale prices.

FAQ

Can I still buy the Cloud 5, or has it been discontinued?

The Cloud 5 has been discontinued in favor of the Cloud 6, but clearance pairs and gray-market stock still exist at end-of-line retailers. The 3-comment fit-replacement thread explicitly says the Cloud 5 is no longer available and that the Cloud 6 fits much wider in a way that disappoints former Cloud 5 owners I recently tried to buy another pair and realized they don't make them anymore. The On Cloud 6 is so wide! My foot was sliding around. Buy clearance Cloud 5 if you find your size; if not, the Cloud X is the closest sibling in lockdown character.

How durable is the Cloud 5, really?

Realistically 300-400 miles; the CloudTec pods chip and tear with hard use and the heel mesh can wear through if you drag your feet. The 33-comment heel-hole thread is a cautionary tale of a Cloud 5 worn casually for 5 months developing a heel blowout, with retail-experienced commenters saying On is not a 500-mile durability brand Shoes usually last 300 miles. On really durable brands, you can get to 500. ON is not one of those brands. Plan replacement at 300 miles; rotate with a second pair to extend cushion life.

Is the Cloud 5 a real running shoe?

No, the Cloud 5 is best treated as a lifestyle walker and travel shoe; it can handle light easy runs but is not a daily training shoe. The 33-comment durability thread is a thread about casual wear (not running) destroying the heel in 5 months, which is the signal that the construction is closer to a lifestyle sneaker than a daily trainer there's no way in hell you worn it casually. It's the way you're walking dragging the back of your feet or something. Buy On Cloudmonster, Cloudsurfer, or Cloudrunner for actual training; reserve the Cloud 5 for walking and travel.

Cloud 5 vs Cloud X vs Cloud 6 — which should I buy?

Buy the Cloud 5 if you find it on clearance and you have a narrower foot; choose the Cloud X if Cloud 5 sizes are gone because it has the closest lockdown profile; avoid the Cloud 6 if you specifically loved the Cloud 5 fit. The same-sub recommendation thread says the Cloud X series is the closest to the Cloud 5 in fit feel Have you tried the Cloud X series? Very similar to the 5's. Try in store to confirm width; On's fit changes between generations are larger than most brands' refreshes.

How is the Cloud 5 Waterproof variant?

The Cloud 5 Waterproof has documented midsole tear issues that may not be normal wear; multiple owners report the midsole splitting in both feet. The 7-comment Cloud 5 Waterproof failure thread shows the midsole tearing simultaneously across both shoes, which suggests a construction quality issue rather than user fault Cloud 5 Waterproof torn midsole in both feet. Skip the Waterproof variant unless you can return easily; if you need waterproof, look at Hoka Anacapa Low GTX instead.