The design of these flasks uses the removable lid as a steeper (or strainer) for your loose Tea or fruit infused water. The inside of the flask is glass for clean taste and minimal flavour transferral but the outside is BPA free plastic to make them more durable. The double layer also gives just enough heat or cooling effect as to allow drinking enjoyment straight after steeping! The design has recently been updated to include a handle for travel ease as well.

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