Nike SB Dunk High fits in the same number as SB Dunk Low, Nike Dunk Low, Nike Dunk High, Air Jordan 1, Air Max 90, and YEEZY Boost 350 V2 — and about half a size larger in number than Air Force 1, adidas Superstar, and Converse Chuck Taylor. Based on 301 owner-reported pairs in the Feetlot database, SB Dunk High and SB Dunk Low are essentially identical in sizing. If unsure: order true to size (same as AJ1/AM90). Coming from AF1 or Superstar: size up half.
SB Dunk High Sizing — What 301 Pairs in the Feetlot Database Tell Us
The Nike SB Dunk High is one of the most-tracked high-top skate sneakers in the Feetlot database. Across 301 owner-reported pairs, the residual variance is tight (standard deviation ≈ 0.25 size units), consistent across the Pro, Premium, and various collab colorways. The key finding: SB Dunk High and SB Dunk Low have nearly identical offsets in the Feetlot model — same number in both. Both sit in the AJ1/AM90 bucket, about half a size larger in number than AF1.
The reason SB Dunk High fits the same as SB Dunk Low is the shared last. The high-top collar doesn't change the length fit — only the ankle coverage. The padded tongue and sidewall of the SB line are slightly thicker than standard Dunk, but not enough to shift the model to a different size bucket.
Should You Size Up or Down in SB Dunk High?
Standard fit — coming from SB Dunk Low, Dunk Low, or AJ1 (most people)
Order true to size. SB Dunk High, SB Dunk Low, Nike Dunk Low, Dunk High, and Air Jordan 1 are all in the same size bucket. No adjustment needed between any of these — same number across the board.
Standard fit — coming from AF1 or adidas Superstar
Size up half. AF1 and Superstar run about half a size smaller in number than SB Dunk High. If you wear AF1 in 10, take SB Dunk High in 10.5.
Wide feet
Size up half. The SB Dunk High last is medium width — similar to standard Dunk. Width isn't offered separately on most colorways. Half a size up is the standard wide-foot adjustment in the Feetlot database.
Narrow feet
True to size works for most narrow feet. The lacing system accommodates narrower insteps without requiring further adjustment.
SB Dunk High vs Dunk High vs Jordan 1 High
In the Feetlot offset model, SB Dunk High, Nike Dunk High, and Air Jordan 1 (all heights) all round to the same size in 0.5 increments. The high-top collar across all three models doesn't change the length fit. Same number in all three.
How SB Dunk High Compares to Other Sneakers
The Nike SB Dunk High fits at the same numerical size as Nike SB Dunk Low, Nike Dunk Low, Nike Dunk High, Air Jordan 1, Air Jordan 3, Air Jordan 4, Nike Air Max 90, Air Max 97, Air Max 1, Air Max 95, Air Max 270, Nike Blazer Mid '77, adidas YEEZY Boost 350 V2, adidas NMD R1, adidas Gazelle, Vans Authentic, Vans Old Skool, and New Balance 574. According to Feetlot data, all of these round to the same size in 0.5 increments.
The shoes that run larger in number than SB Dunk High (size up half from those): Nike Air Force 1, adidas Superstar, adidas Stan Smith, Converse Chuck Taylor Ox, Converse Chuck Taylor Hi, and Sperry Authentic Original. If you wear AF1 or Superstar in 10, take SB Dunk High in 10.5.
Boot-style models: Red Wing Iron Ranger runs about a full size smaller in number than SB Dunk High — if you wear Iron Ranger in 10, take SB Dunk High in 11.
Sign in to Feetlot and add a few of your other sneakers to get a personal SB Dunk High size recommendation calibrated to your actual foot.
Nike SB Dunk High 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
- Buying SB Dunk High in your AF1 size. AF1 runs about half a size smaller in number. If you wear AF1 in 10, take SB Dunk High in 10.5 — not 10.
- Assuming SB Dunk High runs differently than SB Dunk Low. Both use the same last — same number between them. No adjustment when switching between SB Dunk High and Low.
- Confusing SB Dunk High with Dunk High sizing. Both use the same last and the same length advice — same number in SB Dunk High and standard Dunk High.
- Sizing up because of the thick SB padding. The extra SB collar padding is in the ankle, not the toe box or forefoot. It doesn't change the length fit. True to size (AJ1/AM90 baseline) is correct.
- Using Superstar or Stan Smith as a reference without adjusting. Superstar and Stan Smith run about half a size smaller in number than SB Dunk High. If you wear Superstar in 10, take SB Dunk High in 10.5.
How Feetlot Computes These Numbers
Every SB Dunk High 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 SB Dunk High 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.