The THERMOS – 12Oz Stainless Steel Insulated Straw Bottle, Barbie keeps drinks cold for up to 12 hours. Our kids water bottles are built so their drinks are as cool on the inside as they look on the outside. Kids stay hydrated and parents stay happy. The double wall stainless steel construction is built to handle drops, dings and assorted roughhousing. Includes an integrated carry handle with soft-touch grip, making it easy for kids to carry with them throughout the day. Help keep germs away with the hygienically covered silicone straw which is removable for easy cleaning. To clean, you can pop your FUNtainer water bottle in the dishwasher; however hand washing is recommended. Not for use with hot liquids.