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Available in 600ml or 1 litre sizes.


Perfect for trail running and hiking, the BeFree Water Filter System combines a soft bottle and water filter.


Just squeeze the BeFree Microfilter on the trail to get clean water to drink, and give it a shake or a swish to clean out the filter. When it's empty, it collapses to free up space in your pack.


For more information, check out video!



  • Compact and ultralight hollow fiber filter that only weighs 59 g.

  • The collapsible flask packs small to fit into tight spaces such as running shorts, cycling jerseys, paddling or fishing vests.

  • The Katadyn BeFreeTM removes bacteria, cysts and sediment with its pore size of 0.1 micron (0.0001 mm).

  • Easily clean the EZ-Clean MembraneTM by simply shaking or swishing. No backflushing or tools necessary.

  • Fast flowrate of up to 2 liters per minute

  • Easy cleaning > by shaking or swishing

  • Collapsible flask > minimum weight and space requirement

  • EZ-Clean MembraneTM made of hollow fibers

Katadyn BeFree Water Filter Bottle

  • Technology: Hollow fiber filter; 0.1 micron (0.0001 mm) EZ-Clean MembraneTM

    Effect: Removes bacteria, cysts and sediment

    Output: Up to 2 l/min

    Capacity: Up to 1,000L depending on water quality

    Bottle Capacity: 600ml or 1 Litre

    Weight: Approx. 59 g

    Material: EZ-Clean MembraneTM with Hollow Fibers Hydrapak® SoftFlaskTM made of TPU (thermoplastic polyurethane), 100% PVC and BPA free

    Accessories: Hydrapak® SoftFlaskTM, EZ-Clean MembraneTM

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