The Osprey Dyna 15 w/Reservoirs Hydration Vest will ensure you remain hydrated on your running adventures. Lightweight with a breathable mesh back panel, it offers up to 15 litres of capacity for essentials, including two 500ml soft flasks. Multiple pockets at the front, harness, hip-belt, and more, are a mix of zipped and mesh and provide easy space for extra gear, valuables and snacks. The dual chest straps also lend a comfortable, customisable fit, while the trekking pole attachment and safety whistle boasts optimum versatility.