Discover Effortless Speed The Saucony Endorphin Pro 4 is the secret behind your next personal best. Equipped with the latest technology to maximize your performance, these shoes are ready to take you to victory. Revolutionary Cushioning With the combination of PWRRUN HG and PWRRUN PB, you will experience superior cushioning that offers unparalleled response. The innovative SRS (Super Responsive Sockliner) adds extra bounce to every step, challenging you to feel speed like never before. Dynamic Transition The carbon plate integrated into the Saucony Endorphin Pro 4 ensures a more fluid and dynamic foot transition, allowing you to move with impressive efficiency with each stride. Superior Comfort and Fit The enhanced design with a comfortable, lightweight lining in the heel area and an integrated upper ensures a perfect fit that feels like a second skin, giving you the support you need to push your limits. Grip and Durability Prepare to take on any challenge with the sole designed to offer exceptional grip and durability, allowing you to focus on the run and nothing else.