300D high elastic waterproof cloth + PU. 12.2x5.1x16.9 inches (31x13x43 cm), 1.1 pounds. 2Wide, lightweight shoulder straps, comfortable and breathable, can be close to the back of the body, make the strength more uniform, reduce the pressure on the shoulders and neck, and bring you a light experience. Multi-pocket design: 2 front pockets, 2 internal pockets, 2 internal card pockets, 2 side pockets. The main packaging bag can hold laptops, laptops, books, iPads, magazines, cameras, shaving supplies, clothing and other items. Two side pockets can hold water bottles. Multifunctional, suitable for all occasions: hiking, camping, traveling, school, outdoor activities or work, office, school or other indoor activities. This is the best gift for kids on Thanksgiving, Christmas and birthday, and the best gift for One Piece fans.