The Aqua Vessel Ultra Lite Tritan Filtration Bottle is like nothing else on the market--a stylish, lightweight bottle that filters water as you drink. Our sustainable plant-based filter attaches easily to the straw top, so every sip you take is cleaned on its way to your mouth. It is tested to remove 99.9% of Giardia and Cryptosporidium, and its activated coconut shell carbon reduces toxic chemicals, heavy metals, microscopic pathogens, chlorine, sediment and dirt - so it"s safe to use everywhere from the back country to the office. Our MiraGuard antimicrobial technology even keeps the filter clean and free of mold, so you can be sure that whether you"re using tap water or river water, you"re drinking the freshest water around. As always, Eco Vessel uses nothing but the highest quality, premium materials to make our bottles. The new straw top makes it easy to drink out of when you"re on the go--on the trails, on the golf course, at the gym, or just around town. We are dedicated to our bottles, and we"re dedicated to you.