Nike Air Force 1 Flyknit Low fits in the same number as the leather Air Force 1, Air Jordan 1, Air Max 90, Nike Dunk Low, adidas Superstar, and essentially the full AF1/AJ1 baseline cluster. At offset +0.103, AF1 Flyknit Low sits between the leather AF1 (0.000) and AJ1 (+0.217), rounding to "same" as both in 0.5 increments. Based on 191 owner-reported pairs in the Feetlot database, the Flyknit version fits the same length as the leather AF1 — the more flexible upper does not require a size change. If unsure: order true to size. Only YEEZY Boost 350 V2 and AM97 run half a size larger in number.
Air Force 1 Flyknit Low Sizing — What 191 Pairs in the Feetlot Database Tell Us
The Nike Air Force 1 Flyknit Low is among the most-tracked AF1 variants in the Feetlot database. Across 191 owner-reported pairs, the residual variance is tight (standard deviation ≈ 0.25 size units). At offset +0.103, AF1 Flyknit Low rounds to "same" as the leather AF1 (0.000), AJ1 (+0.217), AM90 (+0.314), and Nike Dunk Low (+0.275) in 0.5 increments. The Flyknit upper provides a slightly more snug wrap than the padded leather AF1, placing the Flyknit at +0.103 vs the leather's 0.000 — but this difference is within the half-size rounding window, so no size change is needed between them. The Flyknit version does NOT fit the same as AM97 (+0.355), which rounds to half a size larger in number.
Should You Size Up or Down in Air Force 1 Flyknit Low?
Coming from leather AF1, AJ1, AM90, or Dunk Low
Order true to size. Leather AF1, AJ1, AM90, and Dunk Low all round to the same size as AF1 Flyknit Low in 0.5 increments. Same number in all of them.
Coming from YEEZY Boost 350 V2, AM97, or AM95
Size down half. YEEZY 350 V2 and AM97 run about half a size larger in number than AF1 Flyknit Low. If you wear YEEZY 350 in 10, take AF1 Flyknit Low in 9.5.
Wide feet
Size up half. The Flyknit upper wraps the foot without the rigid leather panel structure, but the midsole last is the same AF1 medium width. Half a size up is the standard wide-foot adjustment.
Narrow feet
True to size. The Flyknit upper conforms well to narrow feet at the correct length.
How AF1 Flyknit Low Compares to Other Sneakers
The Nike Air Force 1 Flyknit Low fits at the same numerical size as Nike Air Force 1 (leather), Air Jordan 1, Air Jordan 4, Air Jordan 12, Air Jordan 13, Nike Air Max 90, Nike Dunk Low, Nike Dunk High, SB Dunk Low, Nike Blazer Low, adidas Superstar, adidas Stan Smith, Vans Authentic, Converse Chuck Taylor Ox, New Balance 574, and Sperry Authentic Original. According to Feetlot data, all of these round to the same size in 0.5 increments.
The shoes that run larger in number than AF1 Flyknit Low (size down half from those): Nike Air Max 97, Nike Air Max 95, adidas YEEZY Boost 350 V2, adidas YEEZY Boost 380, adidas YEEZY 700 V2, and adidas YEEZY 700 V3. If you wear AM97 in 10, take AF1 Flyknit Low 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 AF1 Flyknit Low.
Sign in to Feetlot and add a few of your other sneakers to get a personal AF1 Flyknit Low size recommendation.
Nike Air Force 1 Flyknit Low 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
- Assuming the Flyknit fits differently than leather AF1. AF1 Flyknit Low rounds to the same size as leather AF1 in the Feetlot model. Same number in both.
- Carrying AM97 or YEEZY 350 sizing over directly. AM97 and YEEZY 350 V2 run about half a size larger in number than AF1 Flyknit Low. If you wear either in 10, take AF1 Flyknit Low in 9.5.
- Sizing up because the upper has less structure. The Flyknit midsole and last are the same as the leather AF1. Upper flexibility does not change the correct length — true to size is correct.
How Feetlot Computes These Numbers
Every Air Force 1 Flyknit Low 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.