Men's SAUCONY® ENDORPHIN PRO 3 :: This pace pusher is charged and ready to race! Your updated Men's Saucony Endorphin Pro 3 running shoes are power packed with new PWRRUN PB cushioning that won't break down over time - get ready to wear this for the long haul. On top of this, they've added 4mm of stack height to the heel and forefoot for more protection and pop than before while still managing to reduce the overall weight of the shoe from 7.5 to 7.2 ounces! And for the small details, SPEEDROLL technology in your Endorphin 3 offers aggressive toe-spring that propels you forward like a jet.