Katadyn BeFree

The Katadyn BeFree 1L water filter bottle filters at up to 2 liters per minute — the fastest gravity-and-squeeze system in its class — with a soft collapsible flask that scrunches into a vest pocket when empty and weighs just 2.3 oz packed.

Katadyn BeFree Water Filter Bottle for Fast-Flow Backpacking Filtration

The 0.1-micron hollow fiber EZ-Clean membrane removes 99.9999% of bacteria and 99.9% of protozoa from any freshwater source. The soft flask design allows you to fill the bottle by submerging it directly in a stream or lake, then squeeze and drink without a pump handle, gravity hang, or chemical activation wait time. The EZ-Clean membrane rinses in 30 seconds by backflushing with clean water to restore flow rate, letting you maintain it fully in the field without tools or replacement parts.

• 2-liter-per-minute flow rate — fastest in the soft flask filter category without pumping
• 0.1-micron EZ-Clean hollow fiber membrane removes bacteria and protozoa to EPA standards
• 1-liter BPA-free soft flask collapses flat when empty — 2.3 oz total weight with filter
• EZ-Clean membrane backflushes in 30 seconds to restore full flow rate without tools
• Filters up to 1,000 liters before replacement — covers multiple full seasons of backpacking

At $92.87, the BeFree is the go-to for trail runners, fast-and-light backpackers, and thru-hikers who need water fast without the weight and setup time of a pump filter. One of the highest-rated filtration solutions in the lightweight hiking category.