The Endorphin Speed 4 is made for everyday training and speed training.
Features:
- Smooth SPEEDROLL technology for effortless speed, smooth turnover and propulsive forward motion
- PWRRUN PB foam is a true unicorn, offering the best combination of cushioning and energy return of any foam on the market
- Re-engineered winged nylon plate provides reinforcement while maintaining flexibility
- Support: Neutral
- Offset: 8 mm
- Weight: 7.2 oz
