Head-to-Head
Alphafly 3vsGlycerin 23
The Alphafly 3 is a race shoe while the Glycerin 23 is a daily trainer shoe. The Alphafly 3 retails for $285 while the Glycerin 23 comes in at $175 — a $110 difference. The Alphafly 3 is the lighter shoe at 7.0 oz versus 10.6 oz for the Glycerin 23. In our ratings, the Alphafly 3 edges out the Glycerin 23 — 8.9/10 versus 8.0/10.
| Rating | 8.9 / 10✓ | 8.0 / 10 | |
| Price | $285 | $175✓ | |
| Weight | 7.0 oz✓ | 10.6 oz | |
| Category | Race Shoe | Daily Trainer | |
| Terrain | Road | Road | |
| Cushion | Medium | Medium | |
| Softness | Soft | Balanced | |
| Drop | Medium | Medium | |
| Drop (mm) | 8 mm | 8 mm | |
| Stack | 40 mm | 38 mm | |
| Stability | Neutral | Neutral | |
| Fit | Medium | Wide | |
| Energy Return | High✓ | Low | |
| Breathability | Breathable✓ | Medium | |
| Traction | Low | Medium✓ | |
| Shock Absorption | Medium | High✓ | |
| Durability | Bad | Very Good✓ |
