I received a state cup as a gift in December. The lip of the top was broken. It's fully functional and still leak proof, but I'm puzzled as to how the flip piece broke.
Hi Meegan, we are so sorry to hear about your lid flip! If you haven't already please contact our customer service at email@example.com so that we can get a replacement your way. Also, please don't discard the lid without the flip! It still works great in situations where you don't need to be leak-proof.