Swiggies were invented by inventor and innovator Julie Austin as an alternative way to carry water bottles while running. This new hands-free approach is simple and easy to use. You just fill them up with water and go! They also make a great unique gift for anyone on your shopping list. swiggies holds 11 ounces of water or sports drink for adults and 8 ounces for kids. They can also be frozen to lower body temperature in the heat.