Made of Nylon. Portable, durable, scratch-resistant, anti-tear and anti water splashing. Folding flat when not in use. The back pouch is designed to fit over the handle of common suitcase for easy carrying. It can be placed under seat, save your overweight charges. Its external storage pocket offers quick access to daily use item. Great for weekend, overnight, gym, sports, workout, travel.The back pocket can be converted into a sleeve and fit over the handle of the trolley case, freeing your hands and shoulders during travel.Quantity more than 3000, the price will be by sea.