The Hipster4 is a reduced-to-the-max, super-light, super-slim hipbag. Essential features such as a Racelite AIRFLOW vented back, hydration system compatibility, a auto compression hipbelt and hip fins with zipper pockets make it awesome for a quick blaze around the trails or a full adrenaline-fueled day out. Comes with a 1.5 ltr. WIDEPAC bladder from SOURCE. Features3D-molded RACELITE BackAuto Compression HipbeltHipbelt PocketsMagnetic Hydration Tube GuidingMultiple Stash PocketsReflective Security PipingLight Clip1.5 Ltr. SOURCE WIDEPAC BladderSOS Emergency Plan