Head-to-Head
Gel Cumulus 28vsAero Razor
The Gel Cumulus 28 is a daily trainer shoe while the Aero Razor is a speed trainer shoe. The Gel Cumulus 28 retails for $145 while the Aero Razor comes in at $140 — a $5 difference. The Aero Razor is the lighter shoe at 6.9 oz versus 9.1 oz for the Gel Cumulus 28. In our ratings, the Aero Razor edges out the Gel Cumulus 28 — 8.9/10 versus 7.9/10.
| Rating | 7.9 / 10 | 8.9 / 10✓ | |
| Price | $145 | $140✓ | |
| Weight | 9.1 oz | 6.9 oz✓ | |
| Category | Daily Trainer | Speed Trainer | |
| Terrain | Road | Road | |
| Cushion | Medium | Medium | |
| Softness | Balanced | Firm | |
| Drop | Medium | Low | |
| Drop (mm) | 8 mm | 4 mm | |
| Stack | 38.5 mm | 36 mm | |
| Stability | Neutral | Neutral | |
| Fit | Medium | Narrow | |
| Energy Return | Low | High✓ | |
| Breathability | Medium | Breathable✓ | |
| Traction | Medium | High✓ | |
| Shock Absorption | Medium | Medium | |
| Durability | Good | Good |
