Nike Free 3.0 V4 runs small — it fits the same number as Air Max 90, Air Max 97, adidas YEEZY Boost 350 V2, and Nike Cortez, but about half a size smaller in number than Air Force 1, Air Jordan 1, and Nike Dunk Low. At offset +0.541, Free 3.0 V4 sits in the high-offset cluster alongside YEEZY 350 V2 (+0.476) and Cortez (+0.512), half a step above the AF1/AJ1 baseline. Based on 142 owner-reported pairs in the Feetlot database: if your reference is AF1, AJ1, or Dunk, size up half. If your reference is AM90 or YEEZY 350 V2: same size.
Nike Free 3.0 V4 Sizing — What 142 Pairs in the Feetlot Database Tell Us
The Nike Free 3.0 V4 is among the most-tracked Nike Free models in the Feetlot database. Across 142 owner-reported pairs, the residual variance is tight (standard deviation ≈ 0.25 size units). At offset +0.541, Free 3.0 V4 sits in the same cluster as Nike Cortez (+0.512), YEEZY Boost 350 V2 (+0.476), YEEZY 700 V2 (+0.405), Air Max 90 (+0.314), Air Max 97 (+0.355), and Lunarglide+ 4 (+0.371) — all rounding to "same" in 0.5 increments. AF1 (0.000) rounds to half a size smaller in number; AJ1 (+0.217) and Dunk Low (+0.275) also round to half a size smaller in number.
The Free 3.0 V4's low-profile barefoot-inspired last and minimal cushioning place it in this higher-offset cluster. The thin flexible outsole and snug fit make it run noticeably smaller than the padded AF1/AJ1/Dunk baseline — but it lands in the same zone as other performance-influenced sneakers like AM90, YEEZY 350 V2, and Nike Cortez.
Should You Size Up or Down in Nike Free 3.0 V4?
Coming from AF1, Superstar, or Stan Smith
Size up half. AF1, Superstar, and Stan Smith run about half a size smaller in number than Free 3.0 V4. If you wear AF1 in 10, take Free 3.0 V4 in 10.5.
Coming from AJ1, Nike Dunk Low, or Blazer Mid
Size up half. AJ1, Dunk Low, and Blazer Mid also run about half a size smaller in number than Free 3.0 V4. If you wear AJ1 in 10, take Free 3.0 V4 in 10.5.
Coming from AM90, AM97, or YEEZY Boost 350 V2
Same size. AM90, AM97, and YEEZY 350 V2 all round to the same size as Free 3.0 V4 in 0.5 increments. No adjustment needed.
Coming from Nike Cortez or YEEZY 700 V2
Same size. Nike Cortez (+0.512) and YEEZY 700 V2 (+0.405) both round to the same size as Free 3.0 V4. Same number in all three.
Coming from Clarks Desert Boot or Red Wing Iron Ranger
Size up a full size. Heritage boots run about a full size smaller in number than Free 3.0 V4. If you wear Desert Boot in 9, take Free 3.0 V4 in 10.
How Nike Free 3.0 V4 Compares to Other Sneakers
The Nike Free 3.0 V4 fits at the same numerical size as Nike Air Max 90, Air Max 97, Nike Lunarglide+ 4, ASICS GEL-Kayano 18, Nike Cortez, adidas YEEZY Boost 350 V2, adidas YEEZY 700 V2, and adidas YEEZY 700 V3. According to Feetlot data, all of these round to the same size in 0.5 increments.
The shoes that run smaller in number than Free 3.0 V4 — half size up: Nike Air Force 1, Air Jordan 1, Air Jordan 4, Nike Dunk Low, Nike Dunk High, Nike Blazer Mid '77, adidas Superstar, adidas Stan Smith, adidas NMD R1, Vans Authentic, Vans Old Skool, and New Balance 574. If you wear AF1 or AJ1 in 10, take Free 3.0 V4 in 10.5.
Heritage boot models: Clarks Desert Boot, Red Wing Iron Ranger, Red Wing Moc Toe run about a full size smaller in number than Free 3.0 V4. If you wear Desert Boot in 9, take Free 3.0 V4 in 10.
Sign in to Feetlot and add a few of your other sneakers to get a personal Free 3.0 V4 size recommendation.
Nike Free 3.0 V4 Size Chart (US / EU / UK)
| US Men's | US Women's | UK | EU |
|---|---|---|---|
| 6 | 7.5 | 5.5 | 38.5 |
| 6.5 | 8 | 6 | 39 |
| 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 |
| 12 | 13.5 | 11 | 46 |
| 13 | 14.5 | 12 | 47 |
Common Sizing Mistakes
- Ordering Free 3.0 V4 in your AF1 or AJ1 size. Both AF1 and AJ1 run about half a size smaller in number than Free 3.0 V4. If you wear either in 10, take Free 3.0 V4 in 10.5.
- Assuming Free 3.0 V4 fits the same as Dunk Low or Blazer Mid. Dunk Low and Blazer run about half a size smaller in number. Size up half from those models.
- Assuming Free 3.0 V4 fits differently than AM90 or YEEZY 350 V2. All three round to the same size in the Feetlot model. Same number in all.
How Feetlot Computes These Numbers
Every Nike Free 3.0 V4 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.