The EFS-PRO redefines what’s possible with high-carb fueling. First Endurance completely redesigned formula makes consuming more carbs per hour easier than ever while prioritizing stomach comfort. And with a clinically effective dose of electrolytes, EFS-PRO keeps you fueled, hydrated and energized, even in the most demanding conditions.

• 60-120g/bottle of easy-to-digest carbohydrates
• Improves performance & increases energy
• Boosts hydration & prevents cramping
• No stevia, artificial flavors, sweeteners, or colors