Nike Air Max 270 React fits true to size for most people — the same number as Air Jordan 1, Air Max 90, YEEZY Boost 350 V2, and Vans Authentic, and about half a size larger in number than Air Force 1. The engineered mesh upper hugs the foot, and the React foam midsole doesn't change length. Based on 322 owner-reported pairs in the Feetlot database, the typical wearer takes the same number in AM 270 React as in most common sneakers. If unsure: order true to size. Wide feet should size up half.
Air Max 270 React Sizing — What 322 Pairs in the Feetlot Database Tell Us
The Nike Air Max 270 React is the most-tracked React-cushioned Air Max in the Feetlot database. Across 322 owner-reported pairs, the residual variance is tight (standard deviation ≈ 0.25 size units). Feetlot data shows AM 270 React fits in the same bucket as AJ1, AM90, AM97, YEEZY 350, Vans Authentic — true to size — and about half a size larger in number than AF1.
The AM 270 React uses engineered mesh over a React foam midsole topped with a visible Air 270 unit. The mesh upper sits closer to the foot than AF1's padded leather, which accounts for the half-size offset relative to AF1. The React foam doesn't compress lengthwise with wear.
Should You Size Up or Down in Air Max 270 React?
Standard fit (most people)
Order true to size — your usual sneaker number (AJ1, AM90, YEEZY, Vans). If you normally go half down from your Nike baseline in AF1, take AM 270 React at your Nike baseline — the mesh construction doesn't leave AF1's heel slack.
Wide feet
Size up half. The engineered mesh accommodates some forefoot width, but the heel unit holds the foot at length. Half a size up is the standard wide-foot adjustment.
Narrow feet
True to size works for most narrow feet. Going half down can pinch the toe against the React-unit forefoot frame.
Air Max 270 React vs Air Max 270
The Air Max 270 (original, 2018) and the Air Max 270 React (2019) use the same upper last with the same length advice — true to size, about half a size larger than AF1. The React adds a foam layer between the upper and the Air unit but doesn't change the fit at length.
How Air Max 270 React Compares to Other Sneakers
The Nike Air Max 270 React fits at the same numerical size as Air Jordan 1, Air Jordan 4, Air Jordan 5, Nike Air Max 90, Air Max 97, Air Max 1, Air Max 95, Nike Dunk Low, Nike Dunk High, SB Dunk Low, Nike Blazer Mid '77, Vans Authentic, adidas NMD R1, adidas YEEZY Boost 350 V2, adidas Ultraboost 4.0, 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 AM 270 React: Nike Air Force 1 runs about half a size smaller in number — if you wear AF1 in 10, take AM 270 React in 10.5. Converse Chuck Taylor Ox and Clarks Desert Boot also run about half a size smaller. adidas Superstar rounds to the same bucket as AM 270 React.
Boot-style models: Red Wing Iron Ranger runs about a full size smaller in number than AM 270 React.
Sign in to Feetlot and add a few of your other sneakers to get a personal AM 270 React size recommendation.
Nike Air Max 270 React 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 AM 270 React in your AF1 size. AF1 runs about half a size smaller in number. If you wear AF1 in 10, take AM 270 React in 10.5.
- Assuming AM 270 and AM 270 React are different sizes. Both models use the same last and the same length advice — same size between them.
- Sizing up for the React cushioning. React foam is a midsole material, not a length variable. True-to-size is correct regardless of midsole thickness.
- Carrying Chuck Taylor sizing over. Chuck Ox runs about half a size smaller in number than AM 270 React. If you wear Chuck in 10, take AM 270 React in 10.5.
- Confusing AM 270 React with Air Max 270 React ENG. The ENG variant uses a different upper. The length advice is the same, but check the product details for the specific silhouette you're buying.
How Feetlot Computes These Numbers
Every AM 270 React 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.