Make every day feel like your best day. The Endorphin Shift 2 is the definition of effortless performance. It mixes a lofty bed of PWRRUN cushioning with propulsive Speedroll technology so you get more out of each stride. And with its perfect touch of stability, you can count on lots of feel-good miles, every day of the week. Elevated cushioning and a stiff forefoot combine for an instantly responsive ride so you can run faster, not harder. A new, trimmed-down TPU heel counter shaves off weight while providing great heel fit. Up top, enjoy a more breathable mesh for all-day comfort.