Yeti 12 oz Jr. Rambler BottleRambler Jr. is a small and mighty kids bottle over engineered for your little wild ones. This 355 ml 12 oz. powerhouse inherited double wall vacuum insulation from its Rambler predecessors, carrying on the family legacy by locking in ice cold water through backyard campouts and breaks between tag. As a well deserved convenience for you, we made sure its Straw Cap (which comes included by the way) is leak resistant when closed and both the bottle and