In this video, we compare the top known thermos bottles on the market agains Athletes Brand’s new copper lined Athletes Flask.
The Athletes Flask is proven in this video to be the best vacuum flask for keeping liquids hot. Watch the video to see how big of a difference our test showed against the top brands in the industry. This is the best thermos flask review.
We have not yet tested the bottles for cold, however we will soon. You can get the Athletes Flask at AthletesBrand.com.