Rambler® Jr. is a small-and-mighty kids’ bottle over-engineered for your little wild ones. This 12-ounce powerhouse inherited double-wall vacuum insulation from its Rambler® Drinkware predecessors, carrying on the family legacy by locking in ice-cold water for backyard campouts and breaks between tag. We made sure its included straw cap is leakproof when closed and both the bottle and cap are dishwasher safe. Plus, it’s engineered with a super strong, stainless-steel armour that can handle taking a tumble.