Step 02 — The lineup
6 shoes scored across eleven metrics · Any purpose
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Adidas Adizero Prime X3 STRUNG — Adidas Adizero Prime X3 STRUNG: 50 mm heel stack, 7 mm drop, 291 g — specs from independent lab testing.
Sizing note
Everything here fits true to size. Leave a thumbnail of space at the toe.
Durability
Plated models here average ~400 mi; non-plated land closer to ~438 mi.
Step 03 — Every metric
| Metric | Adidas Adistar BYD | Adidas Adistar 3 | Puma Deviate Nitro 3(2024) | Salomon Aero Glide 3(2025) | Saucony Kinvara Pro | Salomon Aero Volt 2 | Adidas Adizero Boston 14(2025) |
|---|---|---|---|---|---|---|---|
| Weight | 285 g / 10.1 oz | 310 g / 10.9 oz | 275 g / 9.7 oz | 255 g / 9.0 oz | 286 g / 10.1 oz | 235 g / 8.3 oz | 245 g / 8.6 oz |
| Drop | 6 mm | 6 mm | 8 mm | 6 mm | 8 mm | 6 mm | 6 mm |
| Stack (heel) | 38 mm | 42 mm | 40 mm | 40 mm | 42 mm | 38 mm | 38 mm |
| Cushioning | |||||||
| Flexibility | |||||||
| Stability | |||||||
| Rocker geometry | |||||||
| Energy return | |||||||
| Responsiveness | |||||||
| Toe-box | Standard | Standard | Standard | Standard | Standard | Standard | Standard |
| Plate | Nylon | — | Carbon | — | Carbon | Nylon | Nylon |
| Intended pace | 7:45–10:15 /mi | 9:00–12:30 /mi | 6:45–9:15 /mi | 8:00–11:00 /mi | 7:00–9:30 /mi | 6:30–9:00 /mi | 6:30–8:45 /mi |
| Purpose | Long run, Tempo | Recovery, Long run, Daily | Tempo, Long run, Daily | Daily, Long run | Long run, Tempo | Tempo, Long run | Tempo, Long run |
| Sizing | True to size | True to size | True to size | True to size | True to size | True to size | True to size |
| Durability | ~450 mi | ~600 mi | ~400 mi | ~400 mi | ~400 mi | ~350 mi | ~400 mi |
| Price | $160 | $150 | $160 | $160 | $180 | $180 | $165 |
Your reference shoe is shown first for context. Cushioning, flexibility and stability are rated 1–5.