LifeStraw Flex is a 2-stage filter that exceeds the NSF 53 drinking water standard for reduction of lead while also reducing chemicals, removing bacteria and parasites. 

This kit includes a soft-touch and the filter can be used in 5 different ways: as a personal straw, with the included soft touch bottle, attached to a plastic water bottle, hydration bladder or as a gravity filter.

Daily use with soft bottle

  1. Fill the soft bottle with water to the max filling line
  2. Screw the filter into the soft bottle and tighten it
  3. Open the top lid, squeeze the bottle to drink safe water

Daily use as a gravity filter

  1. Cut the hose of the gravity filter
  2. Insert both ends of the filter in the hose (pay attention to respect the safe water drinking direction)
  3. Fill the gravity bag with water and collect safe water

Daily use with a hydration bladder

  1. Cut the hose of the hydration bladder
  2. Insert both ends of the filter in the hose (pay attention to respect the safe water drinking direction)
  3. Fill the bladder with water and drink normally through the mouthpiece of the bladder.

Daily use with a plastic bottle

  1. Screw the bottom lid to the cap of any standard plastic bottle
  2. Open the top lid on the top screw-cap and sip filtered water

Daily use as a straw

  1. Open the top lid on the top screw-cap
  2. Place the bottom of the filter in a water source
  3. Sip filtered water
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