The Yeti Rambler 18 oz. (532ml) Bottle with Chug Cap is built for long adventures where hydration is key. Whether you're tackling a hot day or embarking on an extended outdoor journey, this bottle ensures ice-cold sips of water without the need for pit stops. The No Sweat exterior keeps condensation at bay, so your hands stay dry even in triple-digit temps. With a massive 18-ounce capacity, it's ideal for keeping you (and even your dog) hydrated all day long. Perfect for those who need a large, durable water bottle on the go, the Rambler 18 oz. is your personal water tower.