The Arcteryx Aerios Daypack 10 offers maximum airflow and comfort in warmer climates. This Arc'teryx training pack's breathable shoulder straps and 3D molded framesheet with anti-barrelling ribs ensure comfort during a hard workout. Even when running this low profile pack helps your gear stays put with a modular waistbelt that can be positioned higher on the abdomen for excellent bounce control. Stay hydrated with the Aerios hydration bladder sleeve and clip with HydroPort and modular hose clip. Other features include full length U-zipper access; modular, stowable bungee compression system; internal security pocket; mesh stow pocket; key clip; top grab handle; and reflective blazes. The Arcteryx Aerios Daypack 10 is perfect for trail running and light and fast day hikes when all you need is a hydration bladder, food, and compact outerwear.