Head-to-Head
Adizero Adios 9vsAdizero Boston 13
The Adizero Adios 9 and Adizero Boston 13 are both speed trainer shoes built for road running. The Adizero Adios 9 retails for $140 while the Adizero Boston 13 comes in at $160 — a $20 difference. The Adizero Adios 9 is the lighter shoe at 6.2 oz versus 9.0 oz for the Adizero Boston 13. In our ratings, the Adizero Adios 9 edges out the Adizero Boston 13 — 9.4/10 versus 9.2/10.
| Rating | 9.4 / 10✓ | 9.2 / 10 | |
| Price | $140✓ | $160 | |
| Weight | 6.2 oz✓ | 9.0 oz | |
| Category | Speed Trainer | Speed Trainer | |
| Terrain | Road | Road | |
| Cushion | Low | Medium | |
| Softness | Soft | Balanced | |
| Drop | Medium | Medium | |
| Drop (mm) | 7 mm | 6 mm | |
| Stack | 28 mm | 36 mm | |
| Stability | Neutral | Neutral | |
| Fit | Narrow | Narrow | |
| Energy Return | High✓ | Medium | |
| Breathability | Warm | Medium✓ | |
| Traction | Medium | Medium | |
| Shock Absorption | Medium | Medium | |
| Durability | Good | Very Good✓ |

