Step 02 — The lineup
6 shoes scored across eleven metrics · Any purpose
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Asics GT 1000 15 — Asics GT 1000 15: 36 mm heel stack, 8 mm drop, 278 g — specs from independent lab testing.
Sizing note
Revel 8 run snug — go up half a size, especially for long runs.
Durability
Expect roughly 375 miles before the midsole flattens out.
Step 03 — Every metric
| Metric | On Cloud X Fly | On Cloud X 4 | Nike Rival Fly 4 | Adidas Adizero RC 5 | Saucony Freedom 4 | Adidas Duramo Speed | Brooks Revel 8 |
|---|---|---|---|---|---|---|---|
| Weight | 240 g / 8.5 oz | 250 g / 8.8 oz | 235 g / 8.3 oz | 210 g / 7.4 oz | 227 g / 8.0 oz | 240 g / 8.5 oz | 244 g / 8.6 oz |
| Drop | 7 mm | 7 mm | 8 mm | 8 mm | 4 mm | 9 mm | 8 mm |
| Stack (heel) | 28 mm | 30 mm | 30 mm | 28 mm | 28 mm | 30 mm | 32 mm |
| Cushioning | |||||||
| Flexibility | |||||||
| Stability | |||||||
| Rocker geometry | |||||||
| Energy return | |||||||
| Responsiveness | |||||||
| Toe-box | Standard | Standard | Standard | Standard | Standard | Standard | Standard |
| Plate | — | — | — | — | — | — | — |
| Intended pace | 7:15–9:45 /mi | 7:30–10:00 /mi | 6:45–9:15 /mi | 6:15–8:30 /mi | 7:30–10:00 /mi | 7:15–9:45 /mi | 7:30–10:00 /mi |
| Purpose | Daily, Tempo | Daily, Tempo | Tempo, Daily | Tempo, Race day | Daily, Long run | Daily, Tempo | Daily, Long run |
| Sizing | True to size | True to size | True to size | True to size | True to size | True to size | Size up ½ |
| Durability | ~300 mi | ~350 mi | ~400 mi | ~300 mi | ~400 mi | ~400 mi | ~400 mi |
| Price | $150 | $150 | $100 | $90 | $180 | $100 | $100 |
Your reference shoe is shown first for context. Cushioning, flexibility and stability are rated 1–5.