LifeStraw Flex
with gravity bag

A 1 gallon gravity bag with a multi-use filter that removes lead

LifeStraw Flex is a 2-stage filter that provides safe drinking water in any environment. It removes bacteria, parasites, and microplastics while reducing lead and chemicals. It can be used in 4 ways: with the included gravity bag, as a straw, attached to a hydration pack or with a plastic water bottle. EXCLUSIVELY AVAILABLE AT REI


  • Removes 99.999999% of bacteria
  • Removes 99.999 % of parasites
  • Removes 99.999% of microplastics
  • Carbon fiber capsule: Improves taste while reducing lead, other heavy metals, chlorine and organic chemical matter (Pesticides, Herbicides, VOC)
  • Exceeds US EPA drinking water standards for bacteria and parasites
  • Exceeds NSF 42 standard for chlorine reduction and NSF 53 standard for reduction of lead and other heavy metals
  • Longevity/Lifetime: 2,000 liters/500 gallons (hollow fiber membrane) 100 liters/26.4 gallons (replaceable carbon capsule)
  • Filter Size: 6.24 x 1.5 in
  • Filter Weight: 2.0 oz / Gravity Bag & Hose Weight: 5.3 ounces
  • Gravity Bag Volume: 1 gallon / 3.7 liters
  • Kit Includes: LifeStraw Flex filter with carbon capsule, 1 gallon / 3.7 liter gravity bag w/ quick connect hose, backwashing syringe

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