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 enhanced flow rate for easy sipping. At 65g and 5 years of safe water in the palm of your hand, no backpack, pocket, emergency bag or glove compartment should be without one. Your purchase has impact: For every LifeStraw product purchased, a school child in need receives safe water for an entire school year.