Saucony Endorphin Elite 2 - Unisex Colour:White/Peel - The battery pack is

- The battery pack is in the rear to distribute the weight of the headlamp over the entire head

and athletic stamina

training and recovery through heart rate variability

Featuring advanced PWRRUN PB cushioning for dynamic responsiveness and a plush feel

Saucony Endorphin Elite 2 - Unisex Colour:White/Peel - The battery pack isUnleash your speed with the Endorphin Elite 2, the next generation supershoe from Saucony. Designed for competitive racing on the roads, this revolutionary shoe features Sauconys most innovative and responsive foam ever, delivering unmatched energy return and cushioning. The full length slotted carbon fiber plate provides a smooth underfoot transition with a propulsive feel. It is Sauconys most aggressive race day performer yet. With the Endorphin