G.H. Bass Buckingham fits in the same number as Air Force 1, adidas Superstar, adidas Stan Smith, Air Jordan 1, and Converse Chuck Taylor — essentially the full AF1/AJ1 baseline cluster. At offset −0.024, Buckingham sits right at the AF1 reference level in the Feetlot offset model. Based on 197 owner-reported pairs, the typical wearer takes the same number in Buckingham as in their usual sneaker. If unsure: order true to size.
Bass Buckingham Sizing — What 197 Pairs in the Feetlot Database Tell Us
The G.H. Bass Buckingham is the most-tracked Bass model in the Feetlot database. Across 197 owner-reported pairs, the residual variance is tight (standard deviation ≈ 0.25 size units). At offset −0.024, Buckingham sits essentially at the AF1 reference (0.000) — rounding to "same" as AF1, Superstar, Stan Smith, Chuck Ox, and also AJ1 (+0.217) in 0.5 increments. The notable boundary: AM90 (+0.314) and Nike Dunk Low (+0.275) push above the rounding threshold, running about half a size larger in number than Buckingham. Buyers coming from those shoes should size down half.
The leather upper and structured last of the Buckingham place it naturally in the AF1/baseline cluster — close-fitting without the padding slack of athletic sneakers, but not as structured as traditional work boots. Buckingham fits consistently across colorways and leather finishes.
Should You Size Up or Down in Bass Buckingham?
Standard fit — coming from AF1, Superstar, AJ1, or Chuck Taylor
Order true to size. AF1, Superstar, Stan Smith, AJ1, and Chuck Ox all round to the same size as Buckingham in 0.5 increments. Same number in all of them.
Coming from AM90, Nike Dunk, or YEEZY 350 V2
Size down half. AM90 (+0.314) and Dunk Low (+0.275) run about half a size larger in number than Buckingham. If you wear AM90 in 10, take Buckingham in 9.5.
Wide feet
Size up half. The Buckingham last is medium-to-standard width. Half a size up accommodates wider feet.
Narrow feet
True to size. The structured leather upper holds narrow feet well at the correct length.
How Bass Buckingham Compares to Other Shoes
The G.H. Bass Buckingham fits at the same numerical size as Nike Air Force 1, Air Jordan 1, Air Jordan 12, Air Jordan 13, adidas Superstar, adidas Stan Smith, adidas Gazelle, Converse Chuck Taylor Ox, Converse Chuck Taylor Hi, Sperry Authentic Original, Vans Authentic, 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 Buckingham (size down half from those): Nike Air Max 90, Air Max 97, Nike Dunk Low, Nike Dunk High, SB Dunk Low, Nike Blazer Mid '77, adidas YEEZY Boost 350 V2, adidas YEEZY Boost 380, and adidas YEEZY 700 V2. If you wear AM90 in 10, take Buckingham in 9.5.
Boot-style models: Clarks Desert Boot, Red Wing Iron Ranger, and Red Wing Beckman run about half a size smaller in number than Buckingham.
Sign in to Feetlot and add a few of your other shoes to get a personal Buckingham size recommendation.
G.H. Bass Buckingham Size Chart (US / EU / UK)
| US Men's | UK | EU |
|---|---|---|
| 7 | 6 | 39.5 |
| 7.5 | 6.5 | 40 |
| 8 | 7 | 41 |
| 8.5 | 7.5 | 41.5 |
| 9 | 8 | 42 |
| 9.5 | 8.5 | 42.5 |
| 10 | 9 | 43 |
| 10.5 | 9.5 | 43.5 |
| 11 | 10 | 44.5 |
| 11.5 | 10.5 | 45 |
| 12 | 11 | 46 |
| 13 | 12 | 47 |
Common Sizing Mistakes
- Carrying AM90 or Dunk sizing directly. AM90 and Dunk Low run about half a size larger in number than Buckingham. If you wear AM90 in 10, take Buckingham in 9.5.
- Assuming Buckingham fits like a traditional dress boot. Buckingham sits in the AF1 baseline cluster, not the boot cluster. Same size as AF1, AJ1, and Superstar — no downward adjustment from sneakers needed.
- Using YEEZY 350 as a reference without adjusting. YEEZY 350 V2 runs about half a size larger in number than Buckingham. If you wear YEEZY 350 in 10, take Buckingham in 9.5.
How Feetlot Computes These Numbers
Every G.H. Bass Buckingham 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). The result: sizing advice that holds up no matter how unusual a wardrobe is.