MATEIN Travel Laptop Backpack, Large Expandable Rucksack 15.6 Inch with USB Charging Port, Anti Theft Business Backpack for Men Women, Water Resistant Laptop Bag for School College Work, Black

Eexpandable&Large Capacity:Normal capacity is 29.5 L, After Expanding:36.8 L. Men travel backpack with expandable feature offers you more packing capacity than slim laptop backpack. A separate compartment hold 15.6 Inch Laptop. And multiple compartments make your items organized and easier to find. Normal dimensions is 18 x 12.5 x 8 inch / 45.7 x 31.7 x 20.3 cm. Expanding dimensions is 18 x 12.5 x 10 inch / 45.7 x 31.7 x 25.4 cm

Multiple Compartments:It has 17 pockets. Laptop pockets can hold computers 15.6 inches, and 3 main compartments can hold books, clothes, chargers, and more. The inner pocket can hold pens, keys, etc. Front pockets hold frequently used items for quick searches. Side pockets can hold water bottles and umbrellas. It has a hidden anti-theft pocket on the back and shoulders strap, which can hold valuables such as wallets, passports, bank cards, etc. to ensure the safety of your belongings

USB Port Design:Laptop Rucksack with builtin USB charger outside and builtin charging cable inside, provides you with a convenient way to recharge while walking or cycling. Please note that the built-in charging cable needs to be connected to your own mobile power supply to charge your phone， the USB charging port only offers easy access to charge

Luggage Strap & Back Supporter:The luggage strap allows travel laptop backpack was placed on the suitcase tube to free your hands and back. Multi-panel padding back design, gives you maximum back support, adjustable padding shoulder straps help relieve the stress from your shoulder. Best choice as a college Rucksack flight,weekender backpack for travel, airplane carry on travel Rucksack , professional business , travel overnight bag

Durable Material:Water resistant and durable polyester fabric with a metal zipper. Increases the durability of your laptop bag and provides more protection. It can be used as a office backpack, travel Rucksack, or university backpack. It could be a birthday gift, new job gift, valentine's day gift, christmas gift, etc