1.Made of high-grade waterproof canvas and high quality hardware,inside polyester fabric. 2.Waterproof and abrasive fabric, fashion model curve,big capacity inside, exquisite workmanship, adjustable straps, suitable for different height of men, suitable for 15 inch laptop, pad, mobile phone, clothes, wallet, books and other basic items. 3.Support 2.1 A high-speed transmission USB charger port, suitable for normal mobile phone, pad,notebook charging. 4.Structure, main computer bag, phone bags, zipper bag, card bag. 5.Size:45*30*17cm,weight:800g.Color:Grey/Black. 6.Can be used as business bag student bag work bag computer bag leisure bag travel package.