Large Travel Backpack Bag For Women Men,Carry On Backpack,17 Inch Laptop Business Work Waterproof Backpack With Laptop Compartment,Person Item Flight

8cm Extension LayerThe size is measured manually, and there may be differences within 1.19 inches.[ Expandable Large Capacity Travel Backpack ] The Travel backpack has a main pocket and a zipper expansion layer. The main pocket can hold 3-4 days of autumn clothes, enough for daily use. Unzip and you get an extra layer of 8cm. For longer trips, you can use an expansion layer to pack extra items and 2 or 3 days' worth of clothing.[Multi-pocket Backpack]The travel backpack with many compartments holds about 45L. The main pocket can hold goods, and fit 5-8pcs of clothes. The front compartment with various pockets can be used to store notebooks, pens, earphones, and other small items, for quick pick out. The travel bag has a built-in laptop compartment that fits most 15.6-inch laptops.[With USB Charging Port]The backpack has a USB port that allows you to charge your electronic devices by connecting to your own power bank, giving you a more convenient way to charge your phone on the travel.Colorblock,PlainPolyester