Womens Saucony Endorphin Seeking 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 add Speedroll technology, proven to help you propel in a forward-rolling motion, a silky-smooth heel liner and integrated tongue system, you'll feel like you're slipping on an old friend come race day. WHY YOU'LL LOVE IT Snappy SPEEDROLL technology – effortless speed and propusive forward motion Carbon plate – maximum and energy return and instant turnover Silky smooth heel liner and integrated tongue for a connected, comfortable fit SPECS Best for: Race Run Heel-to-toe Offset: 8mm (39.5/31.5mm forefoot) Weight: 7.5oz (212g) Sustainability: This style is vegan and contains recycled materials