The Best Backpacking Water Filters

Once upon a time, you didn't need such a newfangled contraption as a backpacking water filter. Getting a refreshing drink meant meant dipping your tin Sierra cup (or Nalgene) in any stream and taking a nice, cool, clear drink. Unfortunately, thanks to the prevalence of giardia and other fun protozoa and bacteria, that's now likely to have you running behind every tree.

Thankfully, the solution is pretty simple. Grab one of these water filters and put it between you and that ice cold stream. Many of the filters we've tested aren't much more complex in operation than dipping a cup in a stream. In fact, our first two picks allow you do pretty much just that, drinking clean, cool water almost as easily as John Muir did.

Continue reading to learn more about the best water filters for backpacking, written by Scott Gilbertson.

LAST UPDATED

April 15, 2025

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Scott Gilbertson

Senior Writer and Reviewer

Scott Gilbertson is Operations Manager for the WIRED Reviews Team. He was previously a writer and editor for WIRED’s Webmonkey.com, covering the independent web and early internet culture. You can reach him at luxagraf.net.

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A favorite of ultralight hikers, backpackers, bikers, and travelers, the Sawyer Squeeze filter is the gold standard in water filters for anyone concerned about weight and universal compatibility.

Scott Gilbertson
Senior Writer and Reviewer