ASICS GEL-Kayano 18 fits in the same number as Air Jordan 1, Air Max 90, Air Max 97, Nike Dunk Low, adidas YEEZY Boost 350 V2, and adidas YEEZY 700 V2 — and about half a size larger in number than Air Force 1, adidas Superstar, and Converse Chuck Taylor. Based on 178 owner-reported pairs in the Feetlot database, GEL-Kayano 18 sits solidly in the AJ1/AM90/YEEZY 350 cluster. If unsure: order true to size (same as AJ1). Coming from AF1 or Superstar: size up half.
ASICS GEL-Kayano 18 Sizing — What 178 Pairs in the Feetlot Database Tell Us
The ASICS GEL-Kayano 18 is the most-tracked GEL-Kayano model in the Feetlot database. Across 178 owner-reported pairs, the residual variance is tight (standard deviation ≈ 0.25 size units). At offset +0.357, GEL-Kayano 18 sits alongside Nike Air Max 97 (+0.355) and between AJ1 (+0.217) and YEEZY Boost 350 V2 (+0.476) — rounding to "same" as both at 0.5 increments. The notable finding: GEL-Kayano 18 also rounds to "same" as YEEZY 350 V2, making it roughly interchangeable in size with both the AJ1 and YEEZY 350 clusters. AF1 and Chuck Ox, however, are half a size smaller in number.
The GEL-Kayano 18's padded stability construction — dual-density midsole, rearfoot GEL cushioning, and structured upper — fills interior volume more than lower-profile court shoes like AF1 or Superstar, placing Kayano's offset firmly above the AF1 baseline.
Should You Size Up or Down in ASICS GEL-Kayano 18?
Standard fit — coming from AJ1, AM90, YEEZY 350 V2, or Dunk Low
Order true to size. AJ1, AM90, AM97, Dunk Low, YEEZY 350 V2, and YEEZY 700 V2 all round to the same size as GEL-Kayano 18 in 0.5 increments. Same number in all of them.
Standard fit — coming from AF1, Superstar, or Chuck Taylor
Size up half. AF1, Superstar, Stan Smith, and Chuck Ox run about half a size smaller in number than GEL-Kayano 18. If you wear AF1 in 10, take GEL-Kayano 18 in 10.5.
Coming from YEEZY 700 V3
Size down half. YEEZY 700 V3 (+0.640) runs about half a size larger in number than GEL-Kayano 18. If you wear YEEZY 700 V3 in 10, take GEL-Kayano 18 in 9.5.
Wide feet
Size up half or check wide (2E/4E) widths if available. The GEL-Kayano last runs medium-standard width for a performance running shoe.
Narrow feet
True to size. The structured upper holds narrow feet without a need to size down.
How GEL-Kayano 18 Compares to Other Sneakers
The ASICS GEL-Kayano 18 fits at the same numerical size as Air Jordan 1, Air Jordan 4, Nike Air Max 90, Air Max 97, Nike Dunk Low, Nike Dunk High, SB Dunk Low, Nike Blazer Mid '77, adidas YEEZY Boost 350 V2, adidas YEEZY Boost 380, adidas YEEZY 700 V2, Vans Old Skool, and New Balance 574. According to Feetlot data, all of these round to the same size in 0.5 increments.
The shoes that run smaller in number than GEL-Kayano 18 (size up half from those): Nike Air Force 1, adidas Superstar, adidas Stan Smith, Converse Chuck Taylor Ox, Converse Chuck Taylor Hi, and Sperry Authentic Original. If you wear AF1 in 10, take GEL-Kayano 18 in 10.5.
The shoes that run larger in number than GEL-Kayano 18 (size down half from those): adidas YEEZY 700 V3. If you wear YEEZY 700 V3 in 10, take GEL-Kayano 18 in 9.5.
Boot-style models: Clarks Desert Boot and Red Wing Iron Ranger run about a full size smaller in number than GEL-Kayano 18.
Sign in to Feetlot and add a few of your other sneakers to get a personal GEL-Kayano 18 size recommendation.
ASICS GEL-Kayano 18 Size Chart (US / EU / UK)
| US Men's | US Women's | UK | EU |
|---|---|---|---|
| 6 | 7.5 | 5.5 | 39.5 |
| 6.5 | 8 | 6 | 40 |
| 7 | 8.5 | 6.5 | 40.5 |
| 7.5 | 9 | 7 | 41.5 |
| 8 | 9.5 | 7.5 | 42 |
| 8.5 | 10 | 8 | 42.5 |
| 9 | 10.5 | 8.5 | 43 |
| 9.5 | 11 | 9 | 44 |
| 10 | 11.5 | 9.5 | 44.5 |
| 10.5 | 12 | 10 | 45 |
| 11 | 12.5 | 10.5 | 46 |
| 11.5 | 13 | 11 | 46.5 |
| 12 | 13.5 | 11.5 | 47 |
Common Sizing Mistakes
- Buying GEL-Kayano 18 in your AF1 size. AF1 runs about half a size smaller in number. If you wear AF1 in 10, take GEL-Kayano 18 in 10.5.
- Assuming YEEZY 700 V3 sizing translates directly. YEEZY 700 V3 runs about half a size larger in number than GEL-Kayano 18. If you wear YEEZY 700 V3 in 10, take GEL-Kayano 18 in 9.5.
- Thinking ASICS sizing differs from major sneakers. GEL-Kayano 18 is in the same cluster as AJ1, AM90, and YEEZY 350 V2. Same number in all three.
How Feetlot Computes These Numbers
Every ASICS GEL-Kayano 18 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.