Designed as a race-day shoe, the Endorphin Speed 4 has quickly proven itself much more, equally capable during long, moderate training sessions and sprints to the finish. Thanks to the “just right” combination of winged nylon-plate, SPEEDROLL technology and PWWRUN PB foam, the Endorphin Speed 4 provides the perfect balance of support, rebound and forgiveness. Mile after mile, it's the one that will always show up for you.

• 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. Striking that 'just right' feeling – firm enough to propel, soft enough to cushion
• Re-engineered winged nylon plate for vertical reinforcement while maintaining flexibility through the forefoot

• Cushion: Moderate
• Support: Neutral
• Surface: Road
• Weight: 8.2 oz
• Heel to Toe Drop: 8mm