The Katadyn BeFree water filter has become one of our go-tos for ultralight backpacking. This microfilter has an incredible flow rate, and it can be cleaned in the field. Because you can drink straight from the top like a sports bottle. That means, you can spend less time squeezing or pumping and more time enjoying the trail. The BeFree earned a top spot on our Best Water Filters list for its low weight, convenience, and compact size.