Insulated Straw Cup 12M+ 266Ml Straw Cups Are Great Alternatives To Sippy Cups, With A Soft Straw Helping To Develop Sipping Skills. The Soft, Silicone Straw Is Gentle On Gums & Easy To Drink Through And Little Ones Don’T Have To Tip The Cup Up Very Far To Drink From It. Key Features: 100% Leak And Shake-Proof: Our Unique Intellivalve™ Anti-Leak Technology Guarantees This Trainer Straw Cup Is Completely Leak-Proof, Even When Turned Upside Down Or Shaken. Hygienic: The Drinking Straw Is Made With Bacshield™ Antimicrobial Technology That Reduces Microbes By Up To 99.9%* By Preventing The Growth Of Unwanted Microbes. Super Soft Straw: The Soft Silicone Straw Makes Drinking Easy And Is Gentle On Sensitive Gums And Flips Down Between Sips To Keep It Clean. Double Wall Insulated: The Insulated Base Minimizes Condensation And Keeps Water Cool To Encourage Drinking And Keep Kids Cool While Playing. Easy-Hold: The Ergonomic Design Aids Toddlers In Developing The Hand-Eye Coordination Required To Hold, Lift, And Sip, All While Sitting Upright. Easy Clean And Bpa-Free: Easy To Clean, And Sterilizer And Dishwasher Safe. All Products Are Bpa, Bps, Pvc, Phthalate And Nitrosamine Free.