Leakproof: The lid features a locking flip lid with a silicone seal that is leakproof. The lid also has a straw hole cover to prevent spills.
High quality and durable: The lid is made of high quality BPA-free shatterproof, rustproof, and dishwasher safe plastic.
2-in-1 lid: Featuring a dual functionality, the lid can be used with either a straw or a sipping spout. Additionally, 2 extra straws are included with the lid.