On Running Shoe Size Guide
On Running has exploded onto the scene in the last six months. It's not surprising when you consider the comfort they provide, especially without the weight that usually holds back trainers.
Cloudtec technology on the soles allows these shoes to land effortlessly and push off hard, giving you the most comfortable run possible.
There are a lot of questions around the sizing of On Running trainers, so we put together this quick size guide to clear things up. On Running footwear generally fits true to your usual size. On, however, have recommended that you go up half your regular size on their waterproof range.
If you're used to a different sizing guide, please use the size guide below to find the correct fit for yourself.
Mens shoe fitment guide
| US | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 14 |
| EU | 40 | 40.5 | 41 | 42 | 42.5 | 43 | 44 | 44.5 | 45 | 46 | 47 | 47.5 | 48 | 49 |
|
UK |
6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13.5 |
| JP | 25 | 25.5 | 26 | 26.5 | 27 | 27.5 | 28 | 28.5 | 29 | 29.5 | 30 | 30.5 | 31 | 31.5 |
| BR | 37.5 | 38 | 39 | 39.5 | 40 | 41 | 41.5 | 42 | 42.5 | 43 | 44 | 45 | 46 | 47 |
Junior shoe fitment guide
| US | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | |
| EU | 36 | 36.5 | 37 | 37.5 | 38 | 38.5 | 39 | 40 | 40.5 | 41 | 42 | 42.5 | 43 | |
|
UK |
3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | |
| JP | 22 | 22.5 | 23 | 23.5 | 24 | 24.5 | 25 | 25.5 | 26 | 26.5 | 27 | 27.5 | 28 | |
| BR | 33.5 | 34 | 34.5 | 35 | 36 | 37 | 37.5 | 38 | 39 | 39.5 | 40 | 40.5 | 41 |
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