Leak-Proof Design: The lid is completely leak-proof when the tab is locked in place, ensuring no accidental spills or leaks. Easy One-Handed Opening: The straw cap can be quickly opened with just one hand by touching the button for convenience. Dustproof and Portable: The leak-proof lid keeps the bite valve clean and the soft carry strap allows for easy portability. BPA-Free Material: Constructed from BPA-Free Tritan plastic for durability and safety. Suitable for Kids: The round shape and straw feature make it easy for kids to use and drink from. Brand: OLDLEY Reusability: Reusable Care instructions: Hand Wash Only Special feature: Straw