Material: EVA + 600d (polyester fiber), high quality and durable. Position retractable special sports bag: If it feels like a rugby; when opened, that is a heavy sports bag cylindrical. Shoulder strap: Detachable and adjustable. Splashproof: Safe by a pumping volume sudden Water.Small and large capacity, load: 15 kg. A novel and fashionable design, a great gift for friends or relatives. Use: gym, sports, travel, luggage, carry-on, trekking and camping.