The CamelBak Crux™ Replacement Tube is the perfect way to extend the life of your hydration reservoir. Specifically engineered for the Crux system, this larger diameter tube delivers 20% more water per sip, ensuring you stay hydrated with less effort on the trail. Featuring Hydroguard™ technology, it inhibits the growth of bacteria within the tube, so your water stays fresh and clean. Durable and flexible, it’s the essential upgrade for any serious cyclist or hiker.