BAL ANG Colorful series Lightweight fashion Laptops backpack ASBA990. computer notebook tablet,knapsack,rucksack bag for man woman school student business (L, Purple) Shoulder Strap System: Specially shoulder straps are ergonomically designed for comfort and control. Organizer Pocket: Interior organizer provides divider pockets for pens, pencils, cell phone. Plenty of pockets to organize whatever you need to carry. Open Viewing Compartment: Unique quick recognition window design accommodates most 12"-14" laptops. Water Bottle Pocket: External dual pockets feature elasticized mesh, which expands to secure various size water bottles. Airflow Back System: Airflow design provides extra padding for comfort and maximum back support.