The Protege Flex Duffel is perfect for the person who wants all the storage of a duffel but all the convenience of a backpack. It features hideaway backpack straps so you can be sure that you travel easily in tight spaces where others are restricted by traditional shoulder straps. With convertible straps and two side pockets, you can enjoy all the storage features of a duffel bag. This product is made with durable polyester material.