Building on an award-winning year, the Endorphin Speed 2 is back with its just-right combo of ultralight PWRRUN PB cushioning and a flexible nylon plate. It shines for both speed work and long miles, workouts and race day. Finally, a shoe that works as hard as you do.
• Rolling in speed: Speedroll Technology propels you forward with the feeling of continuous momentum. Its two core variables are elevated cushioning and a stiff forefoot, which together result in an instantly responsive ride so you can run faster, not harder. • Versatile energy return: The Endorphin Speed 2 combines ultralight and springy PWRRUN PB cushioning with a full-length, semi-rigid nylon plate that’s more flexible than carbon fiber, resultingin a powerful Speedroll effect that works for both speed workouts and races. • Superior fit: We worked with our athletes to fine-tune the heel shape and fit for a locked-in feeling, mile after mile. • Lighter footprint: This style contains recycled materials.
