adidas YEEZY Boost 380 fits in the same number as YEEZY Boost 350 V2, Air Max 97, and Air Max 95 — and about half a size larger in number than Air Force 1, Air Jordan 1, Air Max 90, and Dunk Low. Based on 301 owner-reported pairs in the Feetlot database, if your reference shoe is AF1, AJ1, or AM90: size up half in YEEZY 380. If your reference is YEEZY 350 V2: order the same size. Wide feet should size up another half.
YEEZY Boost 380 Sizing — What 301 Pairs in the Feetlot Database Tell Us
The adidas YEEZY Boost 380 is the second-most-tracked YEEZY model in the Feetlot database after the YEEZY Boost 350 V2. Across 301 owner-reported pairs, the residual variance is tight (standard deviation ≈ 0.25 size units), consistent across all YEEZY 380 colorways (Alien, Calcite Glow, Mist). The critical finding: YEEZY 380 and YEEZY 350 V2 are in the same size bucket in the Feetlot offset model — same number in both. Both run about half a size larger in number than AF1, AJ1, AM90, and Dunk Low.
The reason YEEZY 380 fits in the same bucket as YEEZY 350 V2 is the shared Primeknit upper and Boost midsole construction. The fitted knit wraps the foot closely, reducing the length slack present in bulkier uppers like AF1's padded leather. The Boost foam doesn't compress lengthwise. YEEZY 380 also aligns with Air Max 97 and Air Max 95 — other shoes with lightweight uppers that sit in the same high-offset cluster.
Should You Size Up or Down in YEEZY Boost 380?
Standard fit — coming from AF1, AJ1, AM90, or Nike Dunk
Size up half. If you wear AF1, Air Jordan 1, Air Max 90, or Nike Dunk in size 10, take YEEZY 380 in size 10.5. These shoes all sit about half a size below YEEZY 380 in the Feetlot offset model.
Standard fit — coming from YEEZY 350 V2
Order the same size. YEEZY 380 and YEEZY 350 V2 are in the same bucket — if you wear 350 V2 in size 10, take 380 in size 10. No adjustment needed between the two models.
Coming from Converse Chuck Taylor or Clarks Desert Boot
Size up a full size. Chuck Taylor Ox and Desert Boot run about a full size smaller in number than YEEZY 380. If you wear Chuck in 10, take YEEZY 380 in 11.
Wide feet
Size up an additional half (meaning: half above your AF1 size, or half above your YEEZY 350 size). The Primeknit accommodates some width through stretch, but the fitted last doesn't flex as much as a wider-last model.
Narrow feet
True to size (relative to 350 V2) works for most narrow feet. The knit wraps snugly without the instep pressure that can occur in wider lasts.
YEEZY 380 vs YEEZY 350 V2 vs YEEZY 500
YEEZY 380 and YEEZY 350 V2 fit the same in the Feetlot database — same Primeknit construction, same offset, same number. The YEEZY 500 uses a different last (suede-and-mesh) and runs differently; use the YEEZY 500 page for specific guidance on that model.
How YEEZY Boost 380 Compares to Other Sneakers
The adidas YEEZY Boost 380 fits at the same numerical size as adidas YEEZY Boost 350 V2, Nike Air Max 97, Nike Air Max 95, Nike Air Max 270, and adidas NMD R1 Primeknit. According to Feetlot data, all of these round to the same size in 0.5 increments.
The shoes that run larger in number than YEEZY 380 (size up half from those): Nike Air Force 1, Air Jordan 1, Air Jordan 3, Air Jordan 4, Nike Air Max 90, Nike Air Max 1, Nike Dunk Low, Nike Dunk High, SB Dunk Low, Nike Blazer Mid '77, Vans Authentic, Vans Old Skool, adidas Superstar, adidas Gazelle, New Balance 574. If you wear any of these in size 10, take YEEZY 380 in size 10.5.
The shoes that run a full size larger in number: Converse Chuck Taylor Ox, Converse Chuck Taylor Hi, Clarks Desert Boot, and Red Wing Iron Ranger all run about a full size smaller in number than YEEZY 380. If you wear Chuck in 10, take YEEZY 380 in 11.
Sign in to Feetlot and add a few of your other sneakers to get a personal YEEZY 380 size recommendation calibrated to your actual foot.
adidas YEEZY Boost 380 Size Chart (US / EU / UK)
| US Men's | US Women's | UK | EU |
|---|---|---|---|
| 4 | 5.5 | 3.5 | 36 |
| 4.5 | 6 | 4 | 36.5 |
| 5 | 6.5 | 4.5 | 38 |
| 5.5 | 7 | 5 | 38 |
| 6 | 7.5 | 5.5 | 38.5 |
| 6.5 | 8 | 6 | 39 |
| 7 | 8.5 | 6.5 | 40 |
| 7.5 | 9 | 7 | 40.5 |
| 8 | 9.5 | 7.5 | 41 |
| 8.5 | 10 | 8 | 42 |
| 9 | 10.5 | 8.5 | 42.5 |
| 9.5 | 11 | 9 | 43 |
| 10 | 11.5 | 9.5 | 44 |
| 10.5 | 12 | 10 | 44.5 |
| 11 | 12.5 | 10.5 | 45 |
| 11.5 | 13 | 11 | 45.5 |
| 12 | 13.5 | 11.5 | 46 |
Common Sizing Mistakes
- Buying YEEZY 380 in your AJ1 or AM90 size. Both run about half a size smaller in number than YEEZY 380. If you wear AJ1 or AM90 in 10, take YEEZY 380 in 10.5.
- Assuming YEEZY 380 is a full size up from AF1. It's only half a size up from AF1 — same as YEEZY 350 V2. If you wear AF1 in 10, take YEEZY 380 in 10.5 (not 11).
- Thinking YEEZY 380 runs differently than 350 V2. In the Feetlot offset model, YEEZY 380 and YEEZY 350 V2 are the same. Same number in both.
- Using Chuck Taylor as a reference without adjusting. Chuck Taylor Ox runs about a full size smaller in number than YEEZY 380. If you wear Chuck in 10, take YEEZY 380 in 11 — not 10.5.
- Sizing down for the Primeknit stretch. The Primeknit stretches laterally, not lengthwise. Order your usual YEEZY size — don't size down expecting length to open up.
How Feetlot Computes These Numbers
Every YEEZY 380 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 YEEZY 380 size.
This works better than the pairwise approach because Feetlot uses the entire wardrobe graph. 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.