Are you out all day on the go in the backcountry, but don't want to haul a bunch of drinking water around with you? Are you going on long trail runs near streams, mountain bike rides, fishing or boating? The Katadyn BeFree is a great, lightweight choice for active day trips and wins our Top Pick Award for Best Trail Running and Biking Water Filter.
The BeFree is so light and compactable it is a no brainer to throw it in your pack, vest or pocket to pull out when you come across a water source and want instant drinking water. We bring this with us when mountain biking, fishing and on long day hikes and trail runs. The catch is you need to be near water, which is preferably deep enough or running to fill the bottle. The challenge with the Katadyn BeFree is its limited treatment capacity and delicate Hydraflask bottle. We have sprung in a leak in all three bottles we have tested. The leaks are annoying but they are small enough to keep the bottle funtioning. If you're interested in something a little more durable the MSR TrailShot could fit the bill and allows you to drink directly from the water source.