Saucony Endorphin Pro 4 BF20 Insert: 88% Polyamide

Insert: 88% Polyamide

Reduced muscle vibrations

breathable and comfortable to keep feet protected and supported during running

1 large back compartment

Mizuno reflective logo

Saucony Endorphin Pro 4 BF20 Insert: 88% PolyamideThe 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