LifeStraw Go Series is the ultimate sidekick for safer, better-tasting water for travel and everyday use. The 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. The advanced 2-stage filter improves taste and protects against bacteria, parasites, microplastics, chlorine, silt, sand, and cloudiness. The double wall vacuum insulation keeps your water cool all day. Do good on the go and avoid single-use plastic bottles. For every purchase, a child in need receives safe drinking water for a year.