LifeStraw

Flex 2-Stage, Multi-Function Water Filter System

Whether you're traveling by train, foot, or any other method, one thing remains consistent: the need for safe drinking water. The LifeStraw Flex 2-Stage, Multi-Function Water Filter System gives you that throughout your trip, and kicks it up a notch by providing the convenience of multi-system compatibility. Not only does this filter protect you from bacteria and parasites, it's compatible with the included soft bottle and can be adapted to fit on plastic bottles and hydration bladders. In a pinch, you can even use it directly as a personal straw.