Source Outdoor Fuse Hydration System Pack with Cargo Storage Cargo Volume - 12L; Hydration Volume - 3L Widepac (shipped with pack) Velcro sealed phone pouch; Insulated hydration compartment Lightweight Fabrics; Padded shoulder straps; Adjustable sternum belt with integrated whistle Padded and vented porous foam back system; Essentials compartment with internal Storeganizer, key holder, pen pockets Raincover included; Carrying handle