Gatorade 21 Ounce Instant Powder Pouch Assorted Flavors Electrolyte Drink - Yields 2.5 Liquid Gallons (32 Packages Per Case) - Gatorade Thirst Quencher formula is based on research dating back to 1967 and contains the flavor, electrolytes and carbohydrates needed to help athletes stay better hydrated and turn in their best performance.