Ergonomic, Easy to Grip Design Pivoting Lid Stays Attached to Cup 2 Spill-Resistant, Silicone Spout Top 3 3-Piece Design 4 Dishwasher Safe 5 BPA-Free, Phthalate-Free PVC-Free Swig would look good in a design museum or thrown in the backseat of your car. But its not just a looker, its a doer. It gets your child accustomed to drinking with its ergonomic, easy to grip shape and fun straw or spout options. It saves you from messy spills with its smart flip-top. And the lids are totally interchangeable, so you can mix and match on-the-go.