Nathan - Pinnacle Featherlite Belt Sailor Blue/Reflective Silver OSFM

["25 oz/ 535 ml Nathan X Hydrapak soft flask with exo spine and 3-D construction to maximize water storage and minimize space.","Angled flask holder with bungee cord for easy access and secure fit.","Extended side panels hug the body comfortably for a perfect no bounce fit.","Expandable zippered stretch pocket and fits most smartphones. Interior air mesh fabric to maximize breathability.","One size fits most with adjustable belt and buckle. Storage Capacity: 45.8 cu in / 0.75L. Weight with flask: 4.9oz/140g"]