Product Features IMPROVES 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. SAVES WASTE: The membrane microfilter saves 8,000 single use plastic water bottles LifeStraw is proud to be a B Corp and Climate Neutral Certified brand, committed to meeting the highest standards of verified social and environmental performance, transparency and accountability For every purchase, a child in need receives safe drinking water for a year. Product Specifications 24 fl oz |700 mL 1L | 34 fl oz Weight: 700mL Height: 28cm | 11in Diameter: 10cm | 4in Replaceable filters & parts Double wall vacuum insulation keeps your water cool all day. Not intended to keep liquids hot, as heat inside bottle can cause pressure when opening after a few hours.