The Arcteryx Arro 22 Daypack is a larger version of the Arro 16 day pack. Constructed with Ballistic materials, the Arro 22 ensures durability that borders on indestructibility. But even though it's tough, this Arc'teryx backpack is still engineered for comfort and usability. Advanced materials and distinctive design make the larger Arro pack both sleek and functional. A stretch hydration bladder pocket allows you to fit bladders of all sizes, depending on how much water you need to carry. Panel loading WaterTight zipper and a tough Armourlite kangaroo pocket add an escapist aspect to this metro Arc'teryx backpack. The Arcteryx Arro 22 Daypack is perfect for hikes in and out of the city.