Our Boston Marathon Edition
Saucony Endorphin Speed 4, the ultimate fusion of speed and innovation in running footwear. Engineered with PWRRUN PB cushioning for unparalleled energy return, these shoes offer a responsive and propulsive ride with every stride. The lightweight design and FORMFIT technology provide a personalized fit and exceptional comfort, while the breathable mesh upper ensures ventilation during intense runs. Whether you're training for a race or aiming to elevate your performance, the Endorphin Speed 4 empowers you to reach new levels of speed and efficiency on the road, enabling you to unleash your full potential and dominate every run.

01 RE-ENGINEERED WINGED NYLON PLATE
Added tortional rigidity while maintaining flexibility in toe off.

02 SERIOUS STEP IN COMFORT
A small detail with major upgrades – introducing our all-new Super Responsive Sockliner. We dare you not to spring for joy.

03 IMPROVED RACE-READY FIT
Zonal engineered mesh is equally breathable, but more durable. Plus, an integrated tongue for a connected, secure fit.