Yeezy Foam Runner Onyx: Size Guide, Fit & Review

The Yeezy Foam Runner Onyx comes in whole sizes only: half-size wearers go up one, whole sizes usually stay put, and the foam molds to your foot after a few wears. Two useful details from Reddit: owners who sized up found the fit got looser over time (the foam conforms), and the 2023/2024 Onyx runs are made in China like the MX line, which owners say fits roomier than the old US-made solid colors. Below you’ll find owner reviews, a sizing guide, a FAQ and where to buy.

Yeezy Foam Runner Onyx Review

Here is what owners are saying:

“I wear size 10 for pretty much all shoes but I got size 11 for foam runners and it fits perfect. Go up one size” (r/yeezys)

“I went 1 size up and they felt good, but I did not like how it would get looser over time, so I went tts this time, will be tight at first but should mold to my foot” (r/yeezys)

“They are made in China, same as all the MX Foam RNR/RNNRs” (r/yeezys)

Thank you u/ZeligD and u/PorkelDragon_ for the photos shared on Reddit.

Yeezy Foam Runner Onyx Sizing Guide

Whole sizes only

• If you wear a half size: go up to the next whole size.
• If you wear a whole size: owners are split between true to size (tight at first, then the foam molds to your foot) and one up (comfortable right away but looser over time).

Check the production run

The 2023/2024 Onyx pairs are made in China like the MX colorways, which owners report fit roomier than the original US-made solid colors. If a resale listing shows the size tag, the origin tells you which fit to expect.

Yeezy Foam Runner Onyx FAQ (based on owners’ reviews)

Does the Yeezy Foam Runner Onyx run small?

Not exactly small, but there are no half sizes. Half-size wearers go up one; whole-size wearers can go true to size if they accept a snug break-in.

Will the fit change over time?

Yes. Owners report the foam loosens and conforms to the foot; one owner who sized up regretted the extra room later and went true to size on his next pair.

Are all Onyx pairs the same fit?

No. The 2023/2024 runs are China-made like the MX line and fit roomier than older US-made solid colorways, per owners who have both.

Where can you buy the Yeezy Foam Runner Onyx?

adidas no longer sells them, so the resale market is where owners buy today. You can check current listings and prices on eBay right here.

Compare With Other Yeezy Foam Runners

Lighter options: the Yeezy Foam Runner Sand and Clay Taupe. Marbled: the MX Sand Grey and MX Cinder. Same shade in a slide: the Yeezy Slide Onyx. Want sizing guides for every adidas Yeezy model? Visit our Yeezys category. All the independent (non-adidas) models live in our independent Yeezy Footwear category.