The Rambler Jr. is a compact and robust kids' bottle, purpose-built for your adventurous little ones. This 12 oz. dynamo inherits its double-wall vacuum insulation from its Rambler predecessors, maintaining icy-cold water during backyard campouts and playtime breaks. We've included the Straw Cap for your convenience, ensuring it's leak-resistant when closed, and both the bottle and cap are dishwasher safe. Additionally, it's constructed with a super durable stainless steel exterior that can handle bumps and drops, even in the hands of the most slippery adventurers.