The Best Backpacking Water Filters of 2025

A bacteria-filled beach. A muddy wetland. Glacial silt runoff. The best backpacking water filters have to be able to handle some pretty gnarly water sources without clogging or breaking. I tested the 20 backpacking water filters in this story by taking them to three different water locations, pumping three liters of water through each filter. After each round, I timed how long it took each filter to handle a liter of tap water before continuing to the next round. At the end of all three rounds, I weighed each filter.

Continue reading to learn more, written by Laura Lancaster.

Mwandishi wa Blogu ya Picha
Writer and Editor
Laura Lancaster

Hi, I‘m Laura. I’ve been editing and writing for nearly twenty years, covering everything from developing a seismologist’s first book to telling the story of my first deer hunt. While the first half of my career was spent learning the ropes of publishing in New York City, for the second I’ve been in the wilds of the Pacific Northwest, working on projects for clients in the outdoor space. Most recently, I’ve been working as a senior staff writer at Outdoor Life. When I’m not at home with my husband and daughter, you can find me camping, backpacking, and running in the foothills of the Cascades.

Majina ya Vyombo vya Habari

Clothing and gear can be treated with a 0.5% permethrin spray, sold under names including Sawyer, Insect Shield and Ranger Ready.

Bay Area News Group
News Group

Majina ya Vyombo vya Habari

Sawyer’s picaridin lotion offers the longest protection windows on test — up to 14 hours against mosquitoes and ticks — and its creamy, low-odor formula goes on smooth and dries quickly.

Rachel Cavanaugh
Mwandishi

Majina ya Vyombo vya Habari

The Sawyer Squeeze and Cnoc Vecto made hydration easy.

Josh King
Mwandishi wa Kuchangia