Daniel Eikewrote a review of Hydro Flask 40oz Wide Mouth Water Bottle on August 22, 2016
Familiarity: I've put it through the wringer
This thing will literally keep your water cold for 2 days in 100 degree heat. It's rumored that the designers of this bottle have created an artificial polar atmosphere on the interior of this bottle. Scientists are working to apply this same technology to our polar ice caps. Fascinating Stuff!
All jokes aside, this is a killer bottle to keep your beverage of choice chilled (or hot!).