On The Run StorageUltra-lightweight and super comfortable, the Deuter Ascender 7 Trail Running Backpack is wide, and ergonomic with vest-style shoulder straps and an elasticated compression system. It has two adjustable sternum straps and soft material against the back helping to create a garment-like fit.7 Litres Cargo StorageA stretch mesh inner pocket and side compression straps help eliminate load wobble no matter how challenging the terrain. A holster pocket on the front of one shoulder strap makes it quick and easy to access collapsible trekking poles. And there is space for soft flasks and a GPS in the shoulder strap pockets. The body fabric is made from 100% recycled materials and is Bluesign certified. Best of all, with 7 litres of cargo storage there is room for all your essentials.