The perfect companion for lightweight hiking trips or as backup anytime we are in the backcountry, the Lifestraw Peak Series Collapsible Squeeze 1L Water Bottle with Filter has found a permant spot in our backpacks. Featuring a compact and collapsable design, this water bottle filter easily store in any of our hiking bags and is easy accessible so we can have water ready to drink in a moments notice. The microfilter lasts for up to 500 gallons for years of use, and the filter eliminates harmful bacterial, microplastics, silt, sand, parasites, and other contaminants.