Unopened bag of Infinit Fluid Energizer for triathlon fuel. This is the infinIT Fluid Energizer custom formulated for the long haul. The Ironman Distance formulation has higher calories, 4 grams of protein, medium flavor to taste great and enough electrolytes to keep your muscles going all day and even into the night. INFINIT's exclusive blend of three carbohydrate sources enables your body to process calories up to 40% more efficiently than other commercially made products available. This bag retails for $38.