Run your heart out with Osprey\'s most compact running vest. This pack-vest is constructed from durable nylon ripstop, offering plenty of toughness in an ultra-lightweight design.PowerMesh pockets make your gels and hydration easily accessible, whilst the centre zip pocket can store your waterproof in case of unexpected downpours. The Duro comes complete with twin Hydraulics 250ml soft flasks, but it\'s also compatible with all other Hydraulics reservoirs.A versatile hydration pack with reservoir Zippered reservoir sleeve2x 250ml Soft Flasks with extension hoses Sternum magnet includedFront zippered harness stash pocket with whistle zipper pull Dual lower stretch mesh harness pockets Fabric: 700 x 140D Nylon Triangle RipstopDimensions: H42cm x W25cm x D7cmWeight: 490g