style: D - Men's Backpack Large Capacity Computer Backpack

Product informationOpening method: zipperApplicable gender: neutral/male and femaleMaterial: PolyesterWhether to bring a lock: NoWith or without rain cover: YesFunction: BreathableProcessing methods: soft surfaceHardness: softPattern: plainLining texture: polyesterAccessories type: backpack shoulder padsStrap root number: double rootCarrying parts: soft handleWith or without lever: NoIs there a back cushion cotton: YesWaterproof degree: water repellentBasic version plus size: side pockets, computer compartment, cushioning shoulder strap, can hold 16-inch computerEnhanced and upgraded version of extra size: side pockets, computer compartments, cushioning shoulder straps, luggage straps, USB charging ports, back pressure reduction system, hidden anti-theft bag, can hold 16-inch computersBasic version large: side pockets, computer compartment, cushioning shoulder strap, can hold 15.6-inch computerEnhanced large size: side pockets, computer compartment, cushioning shoulder strap, luggage s