Head-to-Head
Mach X 3vsAero Razor
The Mach X 3 is a long run shoe while the Aero Razor is a speed trainer shoe. The Mach X 3 retails for $190 while the Aero Razor comes in at $140 — a $50 difference. The Aero Razor is the lighter shoe at 6.9 oz versus 8.9 oz for the Mach X 3. In our ratings, the Mach X 3 edges out the Aero Razor — 9.0/10 versus 8.9/10.
| Rating | 9.0 / 10✓ | 8.9 / 10 | |
| Price | $190 | $140✓ | |
| Weight | 8.9 oz | 6.9 oz✓ | |
| Category | Long Run | Speed Trainer | |
| Terrain | Road | Road | |
| Cushion | High | Medium | |
| Softness | Balanced | Firm | |
| Drop | Medium | Low | |
| Drop (mm) | 5 mm | 4 mm | |
| Stack | 44 mm | 36 mm | |
| Stability | Neutral | Neutral | |
| Fit | Narrow | Narrow | |
| Energy Return | Medium | High✓ | |
| Breathability | Medium | Breathable✓ | |
| Traction | Medium | High✓ | |
| Shock Absorption | High✓ | Medium | |
| Durability | Good | Good |
