Purist Insulated water bottles feature a Chromatek insulating liner. Chromatek acts as a barrier to keep water cold and also slow it from freezing (hello Minnesota!).
Purist bottles shield the inside of the bottle from mold, staining or bad tastes. This keeps your bottle clean and your liquids pure. The MoFlow valve is easy to open and leak-proof when closed. Feel free to toss it in your bag knowing it won't leak.
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