A hand holding a Sawyer water filter.
A hand holding a Sawyer water filter.

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.

Media Mentions

Why use a plastic bag when you can simply screw on this end cap, specifically designed for Sawyer water filters?

Zoe Gates
Editor at Backpacker

Media Mentions

In future, I’ll use gravity when I can, and squeeze when I have to.

Richard, aka "LowRange
Hiker

Media Mentions

For longer hikes, it’s convenient to carry a small backcountry water filter, such as a Sawyer Mini or Micro, which allows you to replenish your water from natural sources like streams or ponds.

Philip Werner
Author and Backpacker