First Endurance Hydration Mix Package type:30 Serving gif) no-repeat 50% 50%

gif) no-repeat 50% 50%

Responsive durable outsole

Featuring elastic heel straps that secure their feet

Materials: Synthetic strap

streamlined silhouette with a commitment to responsible materials

First Endurance Hydration Mix Package type:30 Serving gif) no-repeat 50% 50%PREMIUM ENERGY & HYDRATION MIX Our award winning EFS mix has been redesigned to help you train and race like never before. Backed by science and packed with 30g of carbohydrates per serving, the new EFS formula redefines fueling to help you go further, faster. Increases energy & improves performance Clinically effective dose of all 5 electrolytes to prevent cramping & dehydration Isotonic for rapid rehydration Zero Artificial Ingredients