A duffel bag, also known as a gym bag, sports bag, or kit bag, is a cylindrical bag with a top closure that is typically used for carrying sports equipment or clothing for travel. A similar style of the bag is a holdall, which is larger and often made of leather. A tote bag, on the other hand, is a bag with parallel handles that can be carried on the arm. A backpack is also a popular alternative to a duffel bag, with its dual shoulder straps and ample space. Finally, a weekend bag, also known as an overnight bag, is a smaller version of the duffel bag with space for only a few days' worth of clothing and gear.