NEW BOTTLE DESIGN: Same great taste, now easier to Fizz, Mix, and Enjoy! Simply pour soda syrup into the bottle to about 1/2 inch above the fizzy water fill line (approx 1.5oz or 3 Tbsp). Always fizz water before adding any flavor. Your favorite MUG Root Beer Zero Sugar, Your Way. Our MUG Root Beer Zero Sugar drink mix captures the delicious taste, creamy foam, and signature aroma you love with none of the sugar. Perfect for creating a caffeine-free treat any time of day, this soda syrup transfo