Where To Buy Jarritos So I Bought A Mexican Jarritos Soda. It Was Labeled As Containing 13.2 FL OZ (390 ML) Why 13.2oz Or 390mL?

So I bought a Mexican Jarritos soda. It was labeled as containing 13.2 FL OZ (390 mL) Why 13.2oz or 390mL? - where to buy jarritos

I expect that my baby in multiples of two ounces twenty-five milliliter.
It was a Jarritos Mineragua.