Superman Uniform 24 oz. Plastic Mason Jar Keep hydrated and stay stylish at the same time! This Superman Uniform 24 oz. Plastic Mason Jar has been made to look like the uniform of DC Comics'' eponymous superhero in the Superman series! Plastic mason jar features a handle, and includes twist-off lid with straw. Holds up to 24 ounces. Hand wash only. Not dishwasher safe. Do not microwave. Not for hot liquids.