Saucony Endorphin Pro 4 Women’s Mirage CitronSeeking long distance relationships. Everyone needs a ride or die partner. One who will always be there, win or lose. That's the Endorphin Pro 4. Snappy and responsive from the get go, yet smooth and efficient by nature. A miraculous feat we achieved by fusing PWRRUN HG and PWRRUN PB foam in the midsole an industry first. The combo is set on top of a full carbon plate engineered for longitudinal stiffness and maximum metabolic efficiency. And when you