LifeStraw Go Stainless Steel Water Bottle with Filter designed for? Anyone looking for convenient hydration on the go Everyone who enjoys keeping their water cool The LifeStraw Go Stainless Steel Water Bottle with Filter double wall vacuum insulated stainless steel water bottle contains an advanced filter that protects against bacteria, parasites, microplastics, chemicals like chlorine, and improves taste. The insulated, stainless steel bottle is ideal for keeping your water cool while you are on the move. Simply fill with water from fountains, lake, river or tap and filter on the go. Keeps water cool for all-day hydration. There's no more need for single-use plastic bottled water. LifeStraw filters are rigorously tested to meet protocols established by the US Environmental. Protection Agency (EPA) and NSF International/ANSI. LifeStraw Go Stainless Steel Water Bottle with Filter protects against: 99.999999% of bacteria 99.999% of parasites 99.999% of microplastics Silt, sand, and cloudiness greater than 0.2 micron Chlorine & organic chemical matter to improve taste.