Saucony Boston Endorphin Speed 4 – Saucony Portugal
- 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.
Boston, are you ready?
Meet the power of the Endorphin Speed 4
