The Better Bottles use the same style of drinks valve as the hydration packs which Camelbak are so well know for. The self sealing spill proof Big Bite valve (you bite and sip, no need to tilt the bottle) can only be removed through the base of the cap, so as well as preventing a choking hazard this makes it making it easier to wash and impossible to lose!

An integral push-button releases the Big Bite valve and being only 400ml, will never be too heavy for little hands.