LifeStraw Go Series is the ultimate sidekick for safer, better-tasting water for travel and everyday use. The 18oz stainless steel BPA-free bottle filters out nasties, so you can fill up from airport bathrooms, a tap in Mexico, or a gas station while road-tripping, and the slim design fits in most car cupholders! The advanced 2-stage filter improves taste and protects against bacteria, parasites, microplastics, chlorine, silt, sand, and cloudiness. For every purchase, a child in need receives safe drinking water for a year.