The Invader Pro Vector x Water Sipper has a 750 ml storage capacity and is leak proof, 100% Non Toxic and BPA Free. Unique Lock and open mouth feature. Light weight, easy to carry and use. Asymmetrical one-hand design / easier to grab and hold on the sideline or in the gym. Translucent body enables you to track your consumption throughout your workout Quick lock and open mouth function allow easy flow of water. Leak-proof puff valve spout provides a quick flow of water for instantaneous hydration and prevents leaking when not in use The SQUEEZE feature of the bottle is very handy to hydrate yourself and water gushes into your mouth.