The path to reliably clean drinking water begins with eddy® filtered by LifeStraw®. Whether you are a couple days into a backcountry trip or looking for an everyday water bottle, you need a trustworthy source for safe water wherever you roam. Water passes through two separate stages of filtration - the Hollow Fiber Filter removes bacteria, parasites, and microplastics and the Ion Exchange Filter reduces lead, bad taste, chlorine and other unwanted chemicals.Leak-proof when closed and spill-proof when open, the universal eddy straw cap and bite-valve interface delivers a high flow for steady hydration when you need it most. The main vessel is constructed in durable 18/8 stainless steel with a sweat-proof powder coat finish and keeps water cold for hours with double wall vacuum insulation. BPA, BPS, and BPF free.Specs Two Stages of Filtration:Stage 1: Hollow Fiber Membrane - Removes 99.999999% of bacteria (E. Coli, etc.), removes 99.999% of protozoa (Giardia Cryptosporidium, etc.), removes 99.999% of microplastics, Filters 4,000 litres (1,000 gallons)Stage 2: Ion Exchange Filter - Reduces chlorine and lead, removes bad odor and taste, removes organic chemical matter (Pesticides, Herbicides), filters 100 litres (25 gallons)Flip, Bite, Sip: Drink through strawVacuum Insulated: 18/8 Stainless SteelDurable: Powder coat finishLeak-Proof: Leak-proof when closed, spill-proof when openEasy to Carry: Comfortable carry handleStays Dry: Sweat-proof insulationEasy to Clean: Filter rinses clean and bottle is dishwasher safeDrink Clean: BPA, BPS, and BPF freeLifeStraw and CamelBak Give Back: one product, one child, one year of safe waterVolume When Filled: .77L capacity with filterNot for use by children under age 12 without adult supervision