NO MORE LEAKS: 100% leak-proof, spill-proof and break-proof DOUBLE WALL INSULATION - Keeps Drinks Cooler, Longer with No Sweating STAGE 3 CUPS are BPA free and meant for ages 12 months and older AGES AND STAGES GROW WITH YOUR CHILD: From Stage 1 Cups That Help Your Baby Transition From Bottle To Stage 4 Cups Which Include Both Straw and Spout Tops Now there are more fun, loveable characters for your toddler's favorite Sipster spout cup! From Stage 1, Playtex Sipster Cups Help Your Baby Transition From Bottle To Stage 4 Cups (Which Include Both Straw and Spout Tops) With Ease.