Sebago Docksides fits in the same number as Air Force 1, adidas Superstar, adidas Stan Smith, Converse Chuck Taylor Ox, and Converse Jack Purcell Leather — and about half a size smaller in number than Air Jordan 1, Air Max 90, and Nike Dunk Low. At offset −0.211, Docksides sits at the lower end of the AF1/Superstar/Chuck cluster. Based on 117 owner-reported pairs in the Feetlot database: if your reference is AF1, Superstar, or Chuck Taylor, order the same size. If your reference is AJ1 or AM90, size down half.
Sebago Docksides Sizing — What 117 Pairs in the Feetlot Database Tell Us
The Sebago Docksides is among the most-tracked Sebago models in the Feetlot database. Across 117 owner-reported pairs, the residual variance is tight (standard deviation ≈ 0.25 size units). At offset −0.211, Docksides rounds to "same" as AF1 (0.000), adidas Superstar (−0.065), adidas Stan Smith (−0.029), Converse Chuck Taylor Ox (≈−0.222), Converse Jack Purcell Leather (−0.046), and adidas NMD R1 Primeknit (−0.081) at 0.5 increments. AJ1 (+0.217) rounds to half a size larger in number than Docksides; AM90 (+0.314) and Dunk Low (+0.275) also round to half a size larger in number.
The Docksides' leather handsewn moccasin construction produces a fit in the AF1/Superstar/Chuck zone rather than the AJ1/AM90 cluster. The relatively minimal midsole of a boat shoe places it closer to the Chuck Taylor end of the AF1/Superstar cluster than to the cushioned sneaker group.
Should You Size Down in Sebago Docksides?
Standard fit — coming from AF1, Superstar, or Chuck Taylor
Same size. AF1, adidas Superstar, Stan Smith, Converse Chuck Taylor Ox, and Converse Jack Purcell Leather all round to the same size as Docksides in 0.5 increments. Same number in all of them.
Coming from AJ1, AM90, or Nike Dunk Low
Size down half. AJ1, AM90, and Dunk Low run about half a size larger in number than Docksides. If you wear AJ1 in 10 or AM90 in 10, take Docksides in 9.5.
Coming from YEEZY Boost 350 V2 or Nike Cortez
Size down a full size. YEEZY 350 V2 and Nike Cortez run about a full size larger in number than Docksides. If you wear YEEZY 350 in 10, take Docksides in 9.
Coming from Clarks Desert Boot or Red Wing Iron Ranger
Size up. Heritage boots run smaller in number than Docksides — size up half from Desert Boot, or a full size from Iron Ranger or Beckman.
How Sebago Docksides Compares to Other Shoes
The Sebago Docksides fits at the same numerical size as Nike Air Force 1, adidas Superstar, adidas Stan Smith, adidas NMD R1 Primeknit, adidas NMD R1 V2, Converse Chuck Taylor Ox, Converse Jack Purcell Leather, New Balance 574, and New Balance 990 V5. According to Feetlot data, all of these round to the same size in 0.5 increments.
The shoes that run larger in number than Docksides — size down half: Air Jordan 1, Air Jordan 4, Nike Air Max 90, Air Max 97, Nike Dunk Low, Nike Dunk High, Nike Blazer Mid '77, Vans Era, adidas Ultraboost 19, and adidas Forum Mid RS. If you wear AJ1 or AM90 in 10, take Docksides in 9.5.
The shoes that run larger in number than Docksides — size down full: adidas YEEZY Boost 350 V2, Nike Cortez, Nike Free 3.0 V4. If you wear YEEZY 350 in 10, take Docksides in 9.
Sign in to Feetlot and add a few of your other shoes to get a personal Docksides size recommendation.
Sebago Docksides Size Chart (US / EU / UK)
| US Men's | US Women's | UK | EU |
|---|---|---|---|
| 6.5 | 8 | 6 | 39 |
| 7 | 8.5 | 6.5 | 40 |
| 7.5 | 9 | 7 | 40.5 |
| 8 | 9.5 | 7.5 | 41.5 |
| 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 | 46 |
| 12 | 13.5 | 11.5 | 46.5 |
Common Sizing Mistakes
- Ordering Docksides in your AJ1 or AM90 size. Both run about half a size larger in number than Docksides. If you wear AJ1 or AM90 in 10, take Docksides in 9.5.
- Assuming Docksides fits differently than Chuck Taylor or Superstar. Docksides, Chuck Ox, and Superstar all round to the same size in the Feetlot model. Same number in all.
- Assuming Docksides fits the same as Sperry Authentic Original. Sperry data in the Feetlot model is in the same general cluster but verify with the Feetlot app for your specific wardrobe.
How Feetlot Computes These Numbers
Every Sebago Docksides 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.