The LifeStraw Sip utilizes an innovative high-flow membrane to efficiently filter out bacteria, parasites, and microplastics. Reusable and durable: the filter lasts up to 1,000 liters—more than a year with daily use. The SIP straw is made from high-quality stainless steel with a silicone mouthpiece, is BPA-free, and FDA-approved. Each LifeStraw SIP comes with a premium, leak-proof carrying case, allowing you to confidently drink tap water in hotels and restaurants or while traveling internationally. LifeStraw is proud to be a certified B Corp and climate-neutral brand. Your purchase makes a difference: for every LifeStraw product you buy, a needy child receives safe drinking water for a year.