It looks like a regular ol’ insulated metal water bottle. No leaks, no dents, high quality product. Will buy in more colors.” — LucyRN “I am a water bottle fanatic, and this one is a must ...

A capped 2-liter plastic bottle containing a clear, colorless liquid is shaken. The liquid turns a deep blue color. At rest, the liquid returns to colorless. The cycle can be repeated many times. Ask ...