The Shoulder Duffle in conjunction with the Roll-aboard incorporates a back sleeve that slides over the roll-aboard's handle that couples the two bags together allowing the roll-aboard to "piggy back" the Shoulder Duffle. Both bags are purposely left with open and clear interiors in order to fit the maximum amount of gear. The shoulder bag has a 7"x 7" zippered front pocket and two large side pockets. Two smaller zippered compartments are on the exterior of one of the side pockets. Both bags are made with durable water resistant canvas and heavy duty straps and zippers and are domestic airline size compliant. Dimensions are 18"x13"x11" and weight is 1 lb 14 oz. Free shipping to mainland USA.