Saucony Endorphin Pro 4 Shoe Size:9.5 fast legs: When the temperature

fast legs: When the temperature rises

So don't let its small size fool you: this is a high-performance powerhouse that will keep you going strong all day long

Helps prevent injury

Particularly useful in triathlon where bibs are worn on the back while cycling and on the front during the run

Saucony Endorphin Pro 4 Shoe Size:9.5 fast legs: When the temperatureThe Saucony 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