LifeStraw Go Series Stainless Steel 24 oz - Limited EditionIMPROVES TASTE: the Carbon filter reduces chlorine, odors + organic chemical matter FILTERS OUT CONTAMINANTS: the Membrane microfilter protects against Bacteria, Parasites, Microplastics, sand, dirt, and cloudiness LONG LASTING: The membrane microfilter lasts up to 1,000 gal (4,000 L). Carbon filter lasts up to 26 gallons (100 L) about two months. LifeStraw is proud to be a B Corp and Climate Neutral Certified brand For every purchase, a child in need