The Endorphin Edge is the perfect trail runner to help you go the distance in your next adventure Breathable mesh upper Carbitex MonoFlex carbon fiber plate offers speed and efficiency for trail running without sacrificing stability and ground feel PWRTRAC outsole for increased traction on all terrain 3-Quarter plate design offer a more adaptable heel strike SPEEDROLL Technology helps propel you forward Responsive PWRRUNPB foam This style is vegan and contains recycled materials Saucony Men's Endorphin Edge