Head-to-Head
Endorphin Speed 5vsStructure Plus
The Endorphin Speed 5 is a speed trainer shoe while the Structure Plus is a daily trainer shoe. The Endorphin Speed 5 retails for $175 while the Structure Plus comes in at $170 — a $5 difference. The Endorphin Speed 5 is the lighter shoe at 8.4 oz versus 10.4 oz for the Structure Plus. In our ratings, the Endorphin Speed 5 edges out the Structure Plus — 8.8/10 versus 8.6/10.
| Rating | 8.8 / 10✓ | 8.6 / 10 | |
| Price | $175 | $170✓ | |
| Weight | 8.4 oz✓ | 10.4 oz | |
| Category | Speed Trainer | Daily Trainer | |
| Terrain | Road | Road | |
| Cushion | Medium | High | |
| Softness | Balanced | Balanced | |
| Drop | Medium | High | |
| Drop (mm) | 8 mm | 10 mm | |
| Stack | 36 mm | 42 mm | |
| Stability | Neutral | Stability | |
| Fit | Medium | Medium | |
| Energy Return | High✓ | Medium | |
| Breathability | Breathable✓ | Medium | |
| Traction | Medium | Medium | |
| Shock Absorption | Medium | Medium | |
| Durability | Good | Good |
