The membrane microfilter protects against bacteria parasites and microplastics.  The activated carbon + ion exchange filter protects against lead heavy metals chlorine and other chemicals while improving taste.  The  Flex water filter can be used to drink directly from a water source with the included squeeze bottle and attached to a hydration pack gravity bag or disposable water bottle.  Portable and compact this is ideal for hiking camping travel and survival.  Your purchase has impact.  For every  product purchased a school child in need receives safe water for an entire school year.
Protects against 99.999999% of bacteria (including E.coli Salmonella) 99.999% of parasites (including Giardia and Cryptosporidium) 99.999% of microplastics heavy metals like lead chlorine organic chemical matter silt sand and cloudiness;  improves taste
Versatile water filter system can be used 5 ways: as a personal straw filter with the included squeeze bottle with a gravity bag as an in-line filter with most hydration packs or attached to most disposable water bottles
Compact and ultralight filter and 22oz squeeze bottle weighs 3.15 oz and has an easy-to-fill wide opening
Long-lasting membrane microfilter lasts up to 500 gallons;  replaceable activated carbon + ion exchange filter lasts up to 26 gallons