-Packing details: the product includes the official brand dust bag, XAFITI brand tag -Fabric: Nylon Oxford cloth (waterproof, wear -resistant material) -Liner: Polyester -Dimal high 53cm x 32cm x wide 23cm -The structure: iPad bag/outer zipper bag/partition bag/certificate bag/notepad this bag -The adjustable than the shoulder strap -Witious anti -seismic backbone back cushion -Chat use: portable shoulders, shoulders -USB charging -Darian space, you can put daily necessities such as 16 -inch laptops -It can be used with the trolley case -Solilo design -Properative notice: The color will be color difference due to different device display, and everything is subject to the actual object.. XAFITI Brand New 20 Inches Laptop Backpack