Non slip lace stays maintain secure closure

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.
• Offset: 8mm (36/28 mm)
• Weight: Men 8.2oz (233g)

Differential durometer zones optimize surface contact dynamics