Step 02 — The lineup
6 shoes scored across eleven metrics · Any purpose
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On Cloudboom Echo 3 — Carbon marathon racer with a rockered, aggressive toe-off.
Sizing note
Hyperion 3 run snug — go up half a size, especially for long runs.
Durability
Plated models here average ~350 mi; non-plated land closer to ~380 mi.
Step 03 — Every metric
| Metric | Nike Zoom Fly 3(2019) | Nike Zoom Fly 6(2024) | Salomon Aero Blaze 3 | On Cloudswift 3 | On Cloudspark | Adidas Duramo Speed 2 | Brooks Hyperion 3 |
|---|---|---|---|---|---|---|---|
| Weight | 250 g / 8.8 oz | 255 g / 9.0 oz | 245 g / 8.6 oz | 245 g / 8.6 oz | 235 g / 8.3 oz | 258 g / 9.1 oz | 244 g / 8.6 oz |
| Drop | 8 mm | 8 mm | 8 mm | 7 mm | 8 mm | 8 mm | 8 mm |
| Stack (heel) | 33 mm | 43 mm | 34 mm | 32 mm | 32 mm | 33 mm | 36 mm |
| Cushioning | |||||||
| Flexibility | |||||||
| Stability | |||||||
| Rocker geometry | |||||||
| Energy return | |||||||
| Responsiveness | |||||||
| Toe-box | Narrow | Standard | Standard | Standard | Standard | Standard | Standard |
| Plate | Carbon | Carbon | — | — | — | — | — |
| Intended pace | 6:00–8:00 /mi | 6:15–8:30 /mi | 7:30–10:00 /mi | 7:00–9:30 /mi | 7:30–10:00 /mi | 6:30–8:30 /mi | 7:30–10:00 /mi |
| Purpose | Tempo, Race day | Tempo, Long run | Daily, Tempo | Tempo, Daily | Daily, Tempo | Tempo, Daily | Daily, Long run |
| Sizing | Size up ½ | True to size | True to size | True to size | True to size | Size down ½ | Size up ½ |
| Durability | ~300 mi | ~350 mi | ~400 mi | ~350 mi | ~350 mi | ~400 mi | ~400 mi |
| Price | $160 | $190 | $130 | $160 | $140 | $90 | $150 |
Your reference shoe is shown first for context. Cushioning, flexibility and stability are rated 1–5.