Head-to-Head
Zoomfly 6vsEndorphin Speed 5
The Zoomfly 6 and Endorphin Speed 5 are both speed trainer shoes built for road running. The Zoomfly 6 retails for $170 while the Endorphin Speed 5 comes in at $175 — a $5 difference. The Endorphin Speed 5 is the lighter shoe at 8.4 oz versus 8.6 oz for the Zoomfly 6. Both score 8.8/10 in our ratings.
| Rating | 8.8 / 10✓ | 8.8 / 10✓ | |
| Price | $170✓ | $175 | |
| Weight | 8.6 oz | 8.4 oz✓ | |
| Category | Speed Trainer | Speed Trainer | |
| Terrain | Road | Road | |
| Cushion | Medium | Medium | |
| Softness | Soft | Balanced | |
| Drop | Medium | Medium | |
| Drop (mm) | 8 mm | 8 mm | |
| Stack | 40 mm | 36 mm | |
| Stability | Neutral | Neutral | |
| Fit | Narrow | Medium | |
| Energy Return | Medium | High✓ | |
| Breathability | Medium | Breathable✓ | |
| Traction | Medium | Medium | |
| Shock Absorption | High✓ | Medium | |
| Durability | Very Good✓ | Good |
