Air Jordan 1 Mid fits true to size for most people — same length as the AJ1 High and AJ1 Low. The Mid uses the same last as the High but with a lower-cut ankle collar. Based on 564 owner-reported pairs in the Feetlot database, the typical wearer takes the same number in AJ1 Mid as in AJ1 High, AJ1 Low, Nike Dunk Low, or Air Max 90. If unsure: order true to size. Wide feet should size up half.
AJ1 Mid Sizing — What 564 Pairs in the Feetlot Database Tell Us
The Air Jordan 1 Mid is one of the most-tracked Jordan silhouettes in the Feetlot database. Across 564 owner-reported pairs, the residual variance is tight (standard deviation ≈ 0.23 size units), meaning sizing is consistent across the various Mid colorways (SE, GS, women's-exclusive, premium leather). The "AJ1 Mid fits like the High" pattern lines up with what Feetlot data actually shows: the AJ1 Mid sits within a quarter size of both the AJ1 (High) and the AJ1 Low for the same wearer.
The reason AJ1 Mid runs true to size — same as the High and Low — is the shared last. The only differences between the High, Mid, and Low are at the ankle collar height. The Mid has a shorter collar than the High (stops at the ankle bone) and a higher one than the Low. The forefoot, midfoot, and heel cup are identical. Length advice carries straight across.
Should You Size Up or Down in AJ1 Mid?
Standard fit (most people)
Order true to size — same as the AJ1 High. The leather upper, structured heel, and laced closure give a secure fit at true size. The Mid's shorter collar doesn't change the length you'd buy. True-to-size is what most Feetlot owners report as the correct fit.
Wide feet
Size up half. The Mid's leather upper softens around the throat over the first few hours of wear but doesn't widen the toe box. Width isn't offered separately on most Mid colorways. Half a size up adds forefoot room without making the heel slip.
Narrow feet
True to size works for most narrow feet. The structured heel cup and lace closure pull the upper close, and the Mid's collar adds wraparound contact at the ankle that the Low lacks. Going half down occasionally fits very narrow feet, but a too-small Mid feels uncomfortable at the collar fast.
AJ1 Mid Retro vs AJ1 Mid SE vs AJ1 Mid GS
The standard Mid Retro, the SE (Special Edition) colorways, and the GS (Grade School) sizes all use the same last. SE colorways occasionally use slightly stiffer leather, which can make a true-to-size pair feel marginally snugger out of the box. The GS sizing tops out at 7Y; men's starts at 7 — a "7" can mean either, so check the box.
How AJ1 Mid Compares to Other Sneakers
The AJ1 Mid fits at the same numerical size as Air Jordan 1 (High), Air Jordan 1 Low, Air Jordan 3, Air Jordan 4, Air Jordan 11, Nike Air Max 1, Air Max 90, Air Max 95, Air Max 97, Air Max 270, Nike Dunk Low, Nike Dunk High, SB Dunk Low, Nike Blazer Mid '77, Vans Authentic, Vans Old Skool, adidas Stan Smith, adidas Gazelle, adidas Superstar, adidas NMD R1, New Balance 574, and YEEZY Boost 350 V2. According to Feetlot data, all of these round to the same size in 0.5 increments — same number you wear in AJ1 Mid.
The shoes that run larger in number than AJ1 Mid: Nike Air Force 1, Converse Chuck Taylor (Low and Hi), and Sperry Authentic Original all run about half a size larger than AJ1 Mid — so if you wear AJ1 Mid in 10, you'd take 9.5 in those. Boot-style models (Red Wing Iron Ranger) run a full size smaller than AJ1 Mid in number — size down a full size from AJ1 Mid there.
Sign in to Feetlot and add a few of your other sneakers to get a personal AJ1 Mid size recommendation calibrated to your actual foot.
Air Jordan 1 Mid Size Chart (US / EU / UK)
| US Men's | US Women's | UK | EU |
|---|---|---|---|
| 7 | 8.5 | 6 | 40 |
| 7.5 | 9 | 6.5 | 40.5 |
| 8 | 9.5 | 7 | 41 |
| 8.5 | 10 | 7.5 | 42 |
| 9 | 10.5 | 8 | 42.5 |
| 9.5 | 11 | 8.5 | 43 |
| 10 | 11.5 | 9 | 44 |
| 10.5 | 12 | 9.5 | 44.5 |
| 11 | 12.5 | 10 | 45 |
| 11.5 | 13 | 10.5 | 45.5 |
| 12 | 13.5 | 11 | 46 |
| 13 | 14.5 | 12 | 47.5 |
Common Sizing Mistakes
- Sizing differently for Mid than High. AJ1 Mid uses the same last as the High. Take the same size in both. The Mid's shorter collar doesn't change length-wise sizing.
- Buying AJ1 Mid in your AF1 size. AF1 runs about half a size larger in number than AJ1 Mid. If your AF1 fits half down from true Nike, then your AJ1 Mid should be true to your Nike size — not also half down.
- Treating GS as the same as Men's. AJ1 Mid GS tops out at 7Y. Men's starts at 7. A "7" can mean either — check the construction. GS uses a softer midsole than Men's.
- Expecting the leather to stretch. The Mid's leather softens around the collar but doesn't widen the toe box. Don't size small expecting break-in to fix tight metatarsals — go up half if you have wide feet.
- Going by women's-labeled sizing alone. Many AJ1 Mid colorways release in women's-exclusive sizing — US women's 9 ≈ US men's 7.5. If you're a men's wearer ordering a women's colorway, convert before buying.
How Feetlot Computes These Numbers
Every Air Jordan 1 Mid sizing recommendation on Feetlot is the output of a global offset model fit to over 100,000 owner-reported shoe records. Each shoe gets a single number — its "size offset" — that captures how its sizing drifts relative to a reference shoe (the Nike Air Force 1). When a Feetlot user provides their size in any tracked shoe, the model recovers their true foot baseline and recommends the matching AJ1 Mid size.
This works better than the pairwise approach you'll see on most sizing blogs because Feetlot uses the entire wardrobe graph. A YEEZY 350 owner contributes data about how YEEZY fits relative to AF1 owners (who often own both), which links back to AJ1 Mid owners through any shared model. Even when two users share zero shoes directly, the chain of users in between transmits a consistent recommendation. The result: sizing advice that holds up no matter how unusual a wardrobe is.