Main Features:￠ Made of wear-resistant fiber with oxford-cloth・ durable・ anti-scratch and lightweight￠ Specially designed with outer USB port and hole for earphone cable ( USB cable not included )￠ Breathable and soft pad in back and ergonomic straps・ more comfortable for you to carry heavy stuff￠ With belt in back・ it can be settled in drawbar case￠ Anti-theft zipper・ safer to protect your valuables inside￠ With anti-skip mat in bottom for standing up without other support￠ Multi-pockets・ convenient for classifying different items￠ 20L large capacity and 25kg load-carrying capacity・ it can hold 14 inch laptop easily