1st Endurance EFS Energy & Hydration Mix

Our award winning 1st Endurance EFS Energy & Hydration Mix has been redesigned to help you train and race like never before. With a scientifically validated 2:1 glucose: fructose ratio of carbohydrates, the new EFS formula stands at the forefront of carbohydrate fueling. The lightly flavored, isotonic formula delivers a clinically effective dose of all 5 electrolytes (sodium, potassium, chloride, calcium, magnesium) in the levels shown to prevent cramping and keep you hydrated.

• The premium nutrition provided in the updated EFS is redefining the limits of nutrition so athletes can redefine their endurance limits.
• 1160mg of electrolytes, twice the amount of traditional mixes.
• Improved natural flavor means it tastes great at full concentration or beyond.
• More carbohydrates from more sources, including complex carbs for prolonged energy and complex carbs for immediate energy.