When you’re finished with a run, one of the first things you want to do is take a huge swig of water. Worst case scenario: your bottle is empty and the stream alongside your trail is the only source around you. What do you do? If you have a filtered water bottle, just dip it in the stream, fill it up, and you’ve got potable water.

Read the full article by Daisy Hernandez on Runner's World at: https://www.runnersworld.com/gear/a25955192/best-filtered-water-bottles/