The Endorphin Speed 4 is our premium fast and light hybrid with the ultimate blend of lightweight responsiveness, ideal for those who prefer a neutral daily trainer, faster workout days or race days of any distance.
Features:
Smooth SPEEDROLL technology is effortless speed and addictive forward motion you can rely on daily
Energy efficient PWRRUN PB technology features superfoam cushioning that snaps back
Improved design has zonal engineered mesh and integrated tongue for a connected, secure fit
Step into our newest SRS (Super Responsive Sockliner). We dare you not to bounce
Re-engineered Plate- Vertical reinforcement to add torsional rigidity, while maintaining flexibility through the forefoot.
