Mama (or Dada!) & Me sets are the best. Matching your favorite little with this classic blue and white design will be fun for everyone in the family. This watercolor design is our interpretation of the classic Chinese blue and white ceramics that Southerners love. The sippy cup has a removable clear top that can be set aside when it is time to transition to a toddler mug. We are very proud of this easy to clean melamine mug. Not only does it come in a pattern that mama will enjoy, the top is easy and fast to push onto the mug and stays sealed! We have tested this cup for over a year at home, and despite many dishwasher cycles, the cup's seal has stayed perfectly tight, no leaking except through the small drinking holes where liquid should come out. The design will withstand the dishwasher and stay bright and cheery too! Sippy cup is 100% melamine. BPA free.