Head-to-Head
Cielo X1 3.0vsGlycerin Flex
The Cielo X1 3.0 is a race shoe while the Glycerin Flex is a daily trainer shoe. The Cielo X1 3.0 retails for $275 while the Glycerin Flex comes in at $170 — a $105 difference. The Cielo X1 3.0 is the lighter shoe at 6.8 oz versus 9.1 oz for the Glycerin Flex. In our ratings, the Cielo X1 3.0 edges out the Glycerin Flex — 8.6/10 versus 8.0/10.
| Rating | 8.6 / 10✓ | 8.0 / 10 | |
| Price | $275 | $170✓ | |
| Weight | 6.8 oz✓ | 9.1 oz | |
| Category | Race Shoe | Daily Trainer | |
| Terrain | Road | Road | |
| Cushion | Medium | Medium | |
| Softness | Soft | Balanced | |
| Drop | Medium | Medium | |
| Drop (mm) | 7 mm | 6 mm | |
| Stack | 38 mm | 36 mm | |
| Stability | Neutral | Neutral | |
| Fit | Narrow | Narrow | |
| Energy Return | High✓ | Low | |
| Breathability | Medium | Medium | |
| Traction | High | High | |
| Shock Absorption | High | High | |
| Durability | Bad | Good✓ |
