• Protects against 99.999999% of bacteria (including E.coli, Salmonella), 99.999% of parasites (including Giardia and Cryptosporidium), 99.999% of microplastics, heavy metals including lead, chlorine, organic chemical matter, silt, sand, and cloudiness for improved taste
• Versatile water filter system can be used 5 ways: as a personal straw filter, with the included squeeze bottle, with a gravity bag (sold separately), as an in-line filter with most hydration packs, or attached to most disposable water bottles
• Compact and ultralight filter and 22 oz (0.7 L) squeeze bottle weighs 3.15 oz (89 g) and has an easy-to-fill wide opening
• Long-lasting membrane microfilter lasts up to 500 gallons (2,000 L); replaceable activated carbon + ion exchange filter lasts up to 26 gallons (100 L)
• This product gives back: one purchase, one child, one year of safe water

Specs:
-- Membrane microfilter protects against 99.999999% of bacteria, 99.999% of parasites, 99.999% of microplastics, silt, sand, and cloudiness
-- Activated carbon + ion exchange filter protects against heavy metals like lead, chlorine and odor for improved taste
-- Meets NSF 42 drinking water standard for chlorine reduction
-- Meets NSF 53 drinking water standard for reduction of lead
-- Meets US EPA & NSF P231 drinking water standards for the removal of bacteria and parasites
-- Membrane Microfilter lasts up to 500 gal | 2,000 L, pore size: 0.2 micron
-- Activated Carbon + Ion Exchange Filter lasts up to 26 gal | 100 L
-- Collapsible Bottle Volume: 22 fl. oz | 0.7 L
-- BPA-free
-- Bag is made of durable, TPU laminated nylon
-- Replaceable filters & parts (sold separately)
-- Includes: LifeStraw Flex filter, 22 oz collapsible squeeze bottle, backwashing syringe, user manual