This ultra-lightweight personal water filter straw is made from high-performance, premium materials and boasts an enhanced flow rate for easy sipping. At 65 grams and with five years of safe water in the palm of your hand, no backpack, 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 to protect 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.