Head-to-Head
Glycerin 23vsMach 7
The Glycerin 23 and Mach 7 are both daily trainer shoes built for road running. The Glycerin 23 retails for $175 while the Mach 7 comes in at $145 — a $30 difference. The Mach 7 is the lighter shoe at 8.3 oz versus 10.6 oz for the Glycerin 23. In our ratings, the Mach 7 edges out the Glycerin 23 — 8.4/10 versus 8.0/10.
| Rating | 8.0 / 10 | 8.4 / 10✓ | |
| Price | $175 | $145✓ | |
| Weight | 10.6 oz | 8.3 oz✓ | |
| Category | Daily Trainer | Daily Trainer | |
| Terrain | Road | Road | |
| Cushion | Medium | Medium | |
| Softness | Balanced | Firm | |
| Drop | Medium | Medium | |
| Drop (mm) | 8 mm | 5 mm | |
| Stack | 38 mm | 37 mm | |
| Stability | Neutral | Neutral | |
| Fit | Wide | Narrow | |
| Energy Return | Low | Medium✓ | |
| Breathability | Medium | Breathable✓ | |
| Traction | Medium | High✓ | |
| Shock Absorption | High | High | |
| Durability | Very Good✓ | Good |
