The Pinnacle softflask handheld features Nathan's advanced Exo Shot flask technology in an updated carrier and grip-free strap for unmatched comfort. It boasts an expandable pocket for keys and essentials, ideal for marathons, trail runs, hikes, climbs, and more. Design: 14 oz /414 mL BPA-FREE Nathan x Hydrapak soft flask with bite valve Proprietary soft flask interior rigid ExoSpine(TM) creates superior hand feel and support Ergonomically-designed hand strap for grip-free comfort Breathable wicking mesh strap for maximum comfort Small expandable stash pockets for gels, keys and other small essentials Soft flask can be easily removed from sleeve Additional Details: Weight With Soft Flasks: 2.54oz/72g Storage Capacity: 15.25 cu in/0.25 Liters