Converse Chuck Taylor All-Star 70s High fits in the same number as Core Chuck Taylor Hi and Ox, Air Force 1, and adidas Superstar — and about half a size smaller in number than Air Jordan 1, Air Max 90, Nike Dunk Low, and YEEZY Boost 350 V2. The thicker vulcanized sole and heritage canvas of the 70s doesn't change the length fit from core Chuck. Based on 281 owner-reported pairs in the Feetlot database, if your reference shoe is AJ1, AM90, or Dunk: size down half in Chuck 70s. If your reference is AF1 or core Chuck: order true to size.
Chuck Taylor 70s High Sizing — What 281 Pairs in the Feetlot Database Tell Us
The Converse Chuck Taylor All-Star 70s High is one of the most-tracked premium Chuck Taylor variants in the Feetlot database. Across 281 owner-reported pairs, the residual variance is tight (standard deviation ≈ 0.25 size units), consistent across all Chuck 70s colorways and OX/Hi silhouettes. The key finding: Chuck 70s High and Core Chuck Taylor (both Ox and Hi) are in the same size bucket in the Feetlot offset model — same number in both. Both sit about half a size smaller in number than AJ1, AM90, Dunk Low, and YEEZY 350 V2.
The reason Chuck 70s fits the same as core Chuck is the shared vulcanized last — the heritage construction is cosmetically different (thicker foxing tape, higher-quality canvas, star hardware) but the last that determines length fit is unchanged. The thicker midsole doesn't add length. This pattern holds for Chuck 70s Ox and Hi equally.
Should You Size Up or Down in Chuck Taylor 70s High?
Standard fit — coming from AJ1, AM90, Dunk, or YEEZY 350 (most people)
Size down half. If you wear Air Jordan 1, Air Max 90, Nike Dunk Low or High, SB Dunk Low, or YEEZY Boost 350 V2 in size 10, take Chuck 70s in size 9.5. These shoes all sit about half a size above Chuck 70s in the Feetlot offset model.
Standard fit — coming from AF1, core Chuck, or adidas Superstar
Order true to size. AF1, Core Chuck Taylor Ox, Core Chuck Taylor Hi, and adidas Superstar all sit in the same bucket as Chuck 70s. If you own AF1 in size 10, take Chuck 70s in size 10.
Wide feet
True to size or half up. The Chuck 70s last is the same medium-to-narrow width as core Chuck. If you find core Chuck tight at the forefoot, size up half in Chuck 70s as well.
Narrow feet
True to size (relative to AF1/core Chuck). The lacing system draws the canvas upper inward regardless of foot width.
Chuck 70s Ox vs Chuck 70s Hi
The low-top Ox and high-top Hi variants of the Chuck 70s use the same last and the same length advice — same number in both. The ankle collar height doesn't affect length fit.
How Chuck Taylor 70s High Compares to Other Sneakers
The Converse Chuck Taylor 70s High fits at the same numerical size as Nike Air Force 1, Core Converse Chuck Taylor Ox, Core Converse Chuck Taylor Hi, Clarks Desert Boot, adidas Superstar, adidas Stan Smith, Sperry Authentic Original, and Balenciaga Triple S. According to Feetlot data, all of these round to the same size in 0.5 increments.
The shoes that run larger in number than Chuck 70s (meaning: size down half in Chuck 70s from those): Air Jordan 1, Air Jordan 3, Air Jordan 4, Nike Air Max 90, Air Max 97, Air Max 270, Nike Dunk Low, Nike Dunk High, SB Dunk Low, Nike Blazer Mid '77, Vans Authentic, Vans Old Skool, adidas Gazelle, New Balance 574, adidas YEEZY Boost 350 V2. Based on Feetlot data, if you wear any of these in size 10, take Chuck 70s in size 9.5.
Boot-style models: Red Wing Iron Ranger runs about half a size smaller in number than Chuck 70s — if you wear Chuck 70s in 10, take Iron Ranger in 9.5.
Sign in to Feetlot and add a few of your other sneakers to get a personal Chuck 70s size recommendation calibrated to your actual foot.
Converse Chuck Taylor 70s High Size Chart (US / EU / UK)
| US Men's | US Women's | UK | EU |
|---|---|---|---|
| 4 | 6 | 3.5 | 36.5 |
| 5 | 7 | 4.5 | 37.5 |
| 6 | 8 | 5.5 | 39 |
| 7 | 9 | 6.5 | 40.5 |
| 7.5 | 9.5 | 7 | 41 |
| 8 | 10 | 7.5 | 41.5 |
| 8.5 | 10.5 | 8 | 42 |
| 9 | 11 | 8.5 | 42.5 |
| 9.5 | 11.5 | 9 | 43 |
| 10 | 12 | 9.5 | 44 |
| 10.5 | 12.5 | 10 | 44.5 |
| 11 | 13 | 10.5 | 45 |
| 12 | 14 | 11.5 | 46.5 |
Common Sizing Mistakes
- Going true to size based on AJ1 or AM90. Chuck 70s is half a size smaller in number than AJ1 and AM90. If you wear either in 10, take Chuck 70s in 9.5.
- Assuming the thicker Chuck 70s sole means sizing up. The thicker foxing and midsole add visual height but not length. Chuck 70s and core Chuck are the same size.
- Carrying YEEZY 350 V2 sizing over without adjusting. YEEZY 350 V2 runs about half a size above Chuck 70s in number. If you wear YEEZY 350 in 10, take Chuck 70s in 9.5.
- Expecting Chuck 70s Ox to fit differently than Chuck 70s Hi. Same last, same size in both. No adjustment between Ox and Hi.
- Using Dunk Low as a direct reference. Nike Dunk Low runs about half a size larger in number than Chuck 70s. If you wear Dunk in 10, take Chuck 70s in 9.5.
How Feetlot Computes These Numbers
Every Chuck Taylor 70s 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). When a Feetlot user provides their size in any tracked shoe, the model recovers their true foot baseline and recommends the matching Chuck 70s size.
This works better than the pairwise approach because Feetlot uses the entire wardrobe graph. The result: sizing advice that holds up no matter how unusual a wardrobe is.