14.5x8x4 inches / 37x20x10 cm. Used condition. See photos for details. first photo is stock, next 2 are actual product. The sling bag contains 6 main pockets, a front pocket, two side pockets and a back pocket. The main pocket can put iPad, books, power bank, etc. Side pockets hold water glasses and umbrella. There are also multiple small pockets for your passport, cards, pens and more. Allows you to arrange your items in an orderly manner, making travel more convenient. Shoulder Strap Detachable Cell Phone Bag = Arm Bag：The mobile phone bag is equipped with a fixed strap that can be fixed on the shoulder strap. When you do not want to use the mobile phone bag on the shoulder strap, you can remove it. In addition ,it can be used as an arm bag, phone pouch, Water Bottle Pouch, hang bag, wristband wallet.