Single shoulder strap (Gearslinger style) stows away in zippered pocket Includes padded shoulder strap (shoulder bag style, removable) Full clamshell design with modular exterior, with the same features as the popular Adventure Bag series Hydration bladder not included Large travel bag that can be carried by hand, shoulder strap or concealable backpack straps. The Doppelduffel Adventure Bag is a unique travel bag that can be carried by hand, by shoulder strap (in 2 orientations), or by it's concealable ergonomic backpack straps. Multiple pockets, pouches, and compartments offer plenty of space and organization, and the main interior is equipped with 2 padded dividers for splitting the main compartment into smaller sections.