Tritan Children's Bottle with Straw 500 ml from the Back to School City Cars Collection by Tutete. The perfect bottle for back to school! The 500 ml Tritan plastic children's bottle is lightweight, durable, and decorated with the fun designs from Tutete's back to school collections. It features a foldable silicone straw that automatically pops up when the lid is opened, making it ideal for kids to drink comfortably without spills. With its integrated handle, you can hang it on a backpack, stroller, or even on your wrist.