DIMENSION & HIGH QUALITY MATERIAL：VANKEAN Heavy Duty laptop backpack is made of high-quality water-repellent ballistic nylon fabric with hard shell saferoom ; Dimensions: 18.6”x13.5”x10.8”, fits up to 17.3” laptop; Weight: 3.08LBS | LARGE CAPACITY & MULTI-FUNCTIONAL COMPARTMENT: This large travel backpack with separated compartments and lots of pockets which can provide roomy space for your 17.3” laptop, iPad, power bank, A4 files, wallet, cards, clothes etc. A sunglass hard shell zone is designed on the top which is convenient and safe for you to put your sunglass, cell phone etc. | FUNCTIONAL & SAFTY: With built in USB charger outside and built in charging cable inside,this usb backpack offers you a more convenient way to charge your phone while walking(POWER BANK is not included). Anti-theft zipper pocket is to keep your valuable items safe in your journey. A RFID Pockets with Identity protection function protects data encoded on most IDs, credit cards, and passports. | BREATHABLE & COMFORTABLE: Padded and breathable mesh back panel of this computer rucksack design help for the air convection, ventilation and heat elimination. Adjustable chest straps lighten your shoulders. Ideal gift for friend as friendship gift. | DURABLE & CONVENIENT: VANKEAN practical mens backpack with a sturdy handle with steel cable on the top for carrying, side compression straps keep the exclusive backpack at whatever size you requires. A well-knitted luggage strap is quite convenient for you to fix the laptop bag on the trolley of your luggage, making your journey and travelling more convenient wherever you go.