WindTook Travel Laptop Backpack for Women Business Work Bag Water Resistant 15.6 Inch Laptop Waterproof Women Fashion Men's Ba

MATERIAL AND CONSTRUCTION- 25 liters, 11“*4.7”*16.1” (28 * 12 * 41cm). Made of waterproof polyester fiber. Extra large space, front pocket*1, front pocket organization slot*1, main compartment*1, 15.6” desktop compartment*1, side pockets*2.

USB CHARGING CONNECTION - Built-in USB port, you can connect the power bank to charge your cell phone without opening the backpack, convenient for you to charge your phone while walking.

Luggage Fixing System - Luggage fixing straps, this travel backpack can be put on a trolley case and pushed easily.