Head-to-Head
Cloudrunner 3vsAero Razor
The Cloudrunner 3 is a daily trainer shoe while the Aero Razor is a speed trainer shoe. The Cloudrunner 3 retails for $160 while the Aero Razor comes in at $140 — a $20 difference. The Aero Razor is the lighter shoe at 6.9 oz versus 10.4 oz for the Cloudrunner 3. In our ratings, the Aero Razor edges out the Cloudrunner 3 — 8.9/10 versus 8.0/10.
| Rating | 8.0 / 10 | 8.9 / 10✓ | |
| Price | $160 | $140✓ | |
| Weight | 10.4 oz | 6.9 oz✓ | |
| Category | Daily Trainer | Speed Trainer | |
| Terrain | Road | Road | |
| Cushion | Low | Medium | |
| Softness | Firm | Firm | |
| Drop | Medium | Low | |
| Drop (mm) | 8 mm | 4 mm | |
| Stack | 31 mm | 36 mm | |
| Stability | Stability | Neutral | |
| Fit | Medium | Narrow | |
| Energy Return | Low | High✓ | |
| Breathability | Medium | Breathable✓ | |
| Traction | High | High | |
| Shock Absorption | Medium | Medium | |
| Durability | Good | Good |
