The CamelBak Octane™ Dart 2017 hydration vest is perfect for staying hydrated and healthy while hitting the road or trail for long runs. The minimalist design won't weigh you down, and the breathable air mesh harness and back panel provide optimal comfort during adventurous trips. Front, zippered storage pocket provides storage for nutrition essentials or for a phone or music device. 50 oz. capacity. Built with an Crux™ Reservoir that provides 20% more water per sip and weight 30% less than . Designed to carry nutrition items and other necessities. Adjustable sternum strap allows for easy, personalized fit . Designed with reflective materials for greater visibility in low light.