The inline adapter allows you to incorporate your hydration ... The Sawyer only filters 1.7 liters per minute and the Katadyn does 2 liters. The Katadyn BeFree won the award for best lightweight water ...

To reduce my risk of ingesting waterborne cooties, I used the 20-ounce Katadyn BeFree Collapsible Water Filter Bottle. The BeFree provides potable water on the go, with the refill-to-drink process ...

The only problem with that is the stainless-steel water bottle adding significant weight to the pack. A new product from Katadyn ... The 0.6-liter BeFree flask and filter weigh just 58 grams ...

The Katadyn BeFree AC 1.0 L Water Filter Bottle looks to have taken its cues from the Lifestraw Peak Series collapsible squeeze bottle, which integrates the filter directly into a soft bottle.