Lorish Business Backpack with large capacity has great security in mind! Made of high quality nylon fabric, which is waterproof and durable. A Main pocket provide roomy space to store your laptop up to 15.6", power bank, clothes, books and other necessities, with additional 3 front pockets and 2 side pockets are available for water bottles, umbrella or phone making your journey convenient without carrying a heavy suitcase. Airflow padding strap and back design can relieve shoulder stress. It's your best choice on daily commute and long trip.