KOR Nava Filter Water Bottle has a capacity of 650 ml. The KOR Nava is the best filtered reusable bottle. Nava makes ordinary tap water taste great by filtering as you sip. Featuring a hands-free push-button cap that opens with a click, a cap you can never lose, a superb water flow and coconut shell filters (which exceed the NSF 42 standards for chlorine taste and odor removal).