Head-to-Head
Adizero Adios 9vsAero Glide 4
The Adizero Adios 9 is a speed trainer shoe while the Aero Glide 4 is a daily trainer shoe. The Adizero Adios 9 retails for $140 while the Aero Glide 4 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 Aero Glide 4. In our ratings, the Adizero Adios 9 edges out the Aero Glide 4 — 9.4/10 versus 9.0/10.
| Rating | 9.4 / 10✓ | 9.0 / 10 | |
| Price | $140✓ | $160 | |
| Weight | 6.2 oz✓ | 9.0 oz | |
| Category | Speed Trainer | Daily Trainer | |
| Terrain | Road | Road | |
| Cushion | Low | High | |
| Softness | Soft | Balanced | |
| Drop | Medium | Medium | |
| Drop (mm) | 7 mm | 8 mm | |
| Stack | 28 mm | 42 mm | |
| Stability | Neutral | Neutral | |
| Fit | Narrow | Medium | |
| Energy Return | High✓ | High✓ | |
| Breathability | Warm | Medium✓ | |
| Traction | Medium | High✓ | |
| Shock Absorption | Medium | High✓ | |
| Durability | Good | Good |
