Geared towards runners, the Nathan Pinnacle Featherlite Belt is a smart piece of gear that enhances performance. This running belt boasts an 18oz/535mL NATHAN x HydraPak Soft Flask with ExoSpine and 3D construction, maximizing water storage while minimizing space. The belt's angled flask holder with a bungee cord ensures easy access and a secure fit. Its extended side panels provide a comfortable, no bounce fit while an expandable zippered stretch pocket accommodates most smartphones. With an adjustable belt and buckle, it fits most sizes. Its interior air mesh fabric maximizes breathability, making it an ideal companion for your day-long running adventures.