46L travel backpack. Straps tuck away making it a duffel. I have used to carry all my items on 2-2week trips to Japan. I have also checked it on one trip tucking the straps in. Holds multiple packing cubes in the main compartment. Has multiple pockets, adjustable straps for shoulder height and hip belt. Unisex. Has a couple spots from use, but overall in great condition with no rips, tears, zipper issues.