Endorphin Pro 4 Size:5.5 Center-front zipper vents body heat

Center-front zipper vents body heat and is backed by kissing welts for low-bulk comfort next to skin

Wear with Most Shoe Styles and Sandals

Because traditional fueling gels and drinks use carbohydrates that break down too fast to tolerate

which is gentle on the skin

fundamental design

Endorphin Pro 4 Size:5.5 Center-front zipper vents body heatThe Saucony Endorphin Pro 4 is a premium road racing shoe that is built to deliver your best performance in races ranging from the 5K to the marathon. After establishing itself as one of the best marathon racing options on the market for the past several years, the Saucony Endorphin Pro series is showing no signs of slowing down with the introduction of its 4th iteration. The Endorphin Pro 4 keeps everything runners love about the series while making