Head-to-Head
Glycerin FlexvsDeviate Nitro 4
The Glycerin Flex is a daily trainer shoe while the Deviate Nitro 4 is a speed trainer shoe. Both are priced at $170. The Deviate Nitro 4 is the lighter shoe at 8.8 oz versus 9.1 oz for the Glycerin Flex. In our ratings, the Deviate Nitro 4 edges out the Glycerin Flex — 8.3/10 versus 8.0/10.
| Rating | 8.0 / 10 | 8.3 / 10✓ | |
| Price | $170✓ | $170✓ | |
| Weight | 9.1 oz | 8.8 oz✓ | |
| Category | Daily Trainer | Speed Trainer | |
| Terrain | Road | Road | |
| Cushion | Medium | Medium | |
| Softness | Balanced | Balanced | |
| Drop | Medium | Medium | |
| Drop (mm) | 6 mm | 8 mm | |
| Stack | 36 mm | 38 mm | |
| Stability | Neutral | Neutral | |
| Fit | Narrow | Narrow | |
| Energy Return | Low | Medium✓ | |
| Breathability | Medium | Breathable✓ | |
| Traction | High | High | |
| Shock Absorption | High✓ | Medium | |
| Durability | Good | Good |
