SKU: SS22228 Capacity: 6 Litres Weighs: 373g (Medium) Frame: Frameless Padding: No Padding Medium capacity running vest that offers plenty of hydration options, as well as incredible storage.   Osprey says The road ahead may be long, but you're ready. The Duro 6 is a favourite choice for trail runners and… Duro 6 Vest Pack with Flasks