Best Backpacking Water Filters of 2025
Everyone exploring the backcountry needs water, but staying hydrated is not as simple as drinking straight from streams and lakes. To protect against protozoa, bacteria, and even viruses, there are myriad water filtration and purification systems built specifically for backpacking (many options on this list are great for day hiking, trail running, and travel, too). We've been testing water filters on backcountry adventures near and far since 2018, and our 19 current favorites below include everything from ultralight squeeze filters and chemical drops to pumps and large-quantity gravity filters. For more background information, see our comparison table and buying advice below the picks, along with details about our testing process.
Continue reading to learn more about the best water filters, written by Maddie Downie.
May 29, 2025
Jenny Abegg and Maddie Downie
Jenny Abegg
Expertise & Background
Topics of Expertise: Climbing, mountaineering, trail running, hiking and backpacking, backcountry skiing
Education: Masters in Education
Years of Writing: 9
Years of Gear Testing: 9
Certifications: PCGI certified Lead Guide
Club or Association Memberships: American Alpine Club, Access Fund, Austrian Alpine Club
Previous Publications: Climbing Magazine, Alpinist, Sidetracked, Adventure Journal, REI Co-op Journal
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Menciones en los medios de comunicación
It's a 0.1 micron inline filter that fits in the palm of your hand and attaches to an included drinking pouch.
Menciones en los medios de comunicación
For extreme bug conditions (deep woods, swamps), pairing the shirt with a dedicated insect repellent like Sawyer Permethrin is recommended, as the shirt itself isn’t chemically treated.
Menciones en los medios de comunicación
Sawyer Squeeze: What I will use to filter from dirty to clean water
Del Escuadrón
Conversaciones de campamento con nuestra comunidad, desde los miembros del escuadrón y los embajadores hasta los socios de marca y el equipo de Sawyer.
