Saucony Unisex Endorphin XC Size:10.5 a battery life of up

a battery life of up to 10 hours and an additional 20 hours from the external powerbank

Smart Support: Innovative GuideRails technology supports your body in its natural motion path while keeping excess motion in check

7mm High Frequency Stroke

Includes a zipper pocket on the mid thigh and backside

Lower Body: 47% Polyester

Saucony Unisex Endorphin XC Size:10.5 a battery life of upWhy You'll Love It: Built for speed with high rebound foam and a carbon fiber plate, the Endorphin XC is a propulsive, fast spike Category: Cross country spike Engineered for speed and endurance, the Endorphin XC is Saucony's highest performance cross country racing shoe, built to help you push past limits and dominate the course. KEY FEATURES: PR worthy cushioning Powered by IncrediRun foam, Saucony's highest rebound, lowest density performance