Does On Cloudboom Echo 2 (Men's) run true to size?

Based on 2 runner reports, the On Cloudboom Echo 2 (Men's) has mixed sizing reports. Check the community data below for details.

Should I size up or down in On Cloudboom Echo 2 (Men's)?

Reports on the On Cloudboom Echo 2 (Men's) are mixed — check the community data below and consider your reference shoe.

2023

Cloudboom Echo v2

Road / Neutralavailable2023

Cloudboom Echo v2

Name: On Cloudboom Echo 2 (Men's)
Brand: On

How to measure your size Width guide

Width options: standard (Men's) / standard (Women's)

Showing: Men's & Women's data combined

Early reportsEarly

Based on 2 reports

Based on 2 reports: slightly_large

Not enough evidence yet

2 of 2 runners said this shoe ran slightly long.

Report your fit

Sizing vs. popular reference shoes

2 reports

If you wear	Length	Width	Toebox	Reports
Asics Gel-Nimbus 27 (Men's) 10100% 1 of 1 runners landed on 10 (0.4 weighted).	Some go half size down	Slightly wide	Roomy toebox	Early reportsEarly Based on 1 report US 10-10
Hoka Clifton 9 (Men's) 10100% 1 of 1 runners landed on 10 (0.4 weighted).	Some go half size down	Slightly wide	Roomy toebox	Early reportsEarly Based on 1 report US 10-10

Asics Gel-Nimbus 27 (Men's)

Early reportsEarly

1 of 1 runners landed on 10 (0.4 weighted).

Length

Some go half size down

Width

Slightly wide

Toebox

Roomy toebox

10100%

Hoka Clifton 9 (Men's)

Early reportsEarly

1 of 1 runners landed on 10 (0.4 weighted).

Length

Some go half size down

Width

Slightly wide

Toebox

Roomy toebox

10100%

Your size, to start

Start with your usual size unless strong runner evidence says otherwise. We don't yet have enough validated reports to confidently recommend a length-size change for the On Cloudboom Echo 2 (Men's).

Own the On Cloudboom Echo 2 (Men's)? A 20-second fit report helps other runners.

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Community reports

Early reports - based on fewer than 10 submissions. More data will improve reliability.

True to size

Across the full report set, this many called the shoe true to size.

Sourced

100%

Reports linked to a public source you can open and verify.

Reported issues

Signals for hotspots, blisters, or other pain points across the full report set.

SortTarget sizeLength verdict

Showing 2 of 2 total reports

Runner notes are AI-extracted sizing summaries from public running-shoe discussions. They are not quotes.

Came from	Bought	Verdict	Runner note	Issues	When
Hoka Clifton 9 (Men's) Size 10.5	10	Slightly longSlightly wide	Reported fit vs Hoka Clifton 9 (Men's) — slightly wide, roomy toebox.	No issues	Mar 2026
Asics Gel-Nimbus 27 (Men's) Size 10.5	10	Slightly longSlightly wide	Reported fit vs Asics Gel-Nimbus 27 (Men's) — slightly wide, roomy toebox.	No issues	Mar 2026