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 armor that can handle taking a tumble. Product Features Digitally printed design Leakproof when closed 18/8 stainless steel Double-wall vacuum insulation Dishwasher safe Note: For ages 3+. Do not use the Rambler Bottle Straw Cap with hot, carbonated, or pulpy beverages or for storage of food or perishables.