LifeStraw took the most popular outdoor water filtration device on the market, and reimagined it for added versatility, sustainability, a better grip experience, and updated design and colors. This ultra lightweight personal water filter straw is made from high performance premium sustainable materials, it has no extra parts to keep track of, and it boasts and enhanced flow rate for easy sipping. At 2 ounces and 5 years of safe water in the palm of your hand, no backpack, pocket, emergency bag, or glove compartment should be without one. Drink directly from lakes, rivers, and streams or fill a container to use your LifeStraw on the go with protection against bacteria, parasites, microplastics, silt, sand, and cloudiness. Rigorously tested to meet drinking water protocols established by the US Environmental Protection Agency (EPA) and NSF International/ANSI. Product Features Enhanced microfilter performance - our re-engineered filter helps reduce clogging from salt & silt for better flow rate over the long haul Extreme durability - premium materials make it tougher and ultra leak-proof High versatile - built-in gravity hose attachment and universal threading for squeeze bottles Product Specifications Weight: 2.3 oz Dimensions: 1.26 x 7.7 in meets US EPA & NSF P231 drinking water standards for the removal of bacteria and parasites BPS Free, FDA approved, premium materials Protects against 99.999999% of bacteria 99.999% of parasites 99.999% of microplastics, silt, sand, and cloudiness Lasts up to 1,000 gal (the filter will stop allowing water to flow through once it has reached the end of its lifetime!) Pore size: 0.2 micron