Hard Shell Laptop Backpack, Expandable Business Travel 17 Inch Waterproof Anti Theft Computer Bag with USB Port & Wet Pocket (Silver)

[Large Capacity Hard Shell Backpack]: Large capacity travel backpack - Backpack has many compartments for easy organization and expansion. 1* main pocket holds your travel items and fits 5-8 pieces of clothing; 1* wet and dry separation bag can hold cosmetics; 1* mesh bag in the middle can protect items from being pressed; Separate laptop compartment can accommodate small computers up to 15.6/16/17 inches; Storage pocket on the side can hold an umbrella or water bottle.[Expandable Design]: dimensions are 17.3*12.8*8.6 inches (Thickness can be extended to 12.2in), meeting the needs of daily commuting. Expandable backpack has smooth zippers on side. When the zipper is opened, the capacity increases instantly, comparable to a 20-inch trolley case.[excellent Backpack Material]: The front hardshell of the backpack is made of ABS is waterproof, scratch-resistant and resistant to crushing. Back shock-absorbing pearl cotton helps to relieve the pressure on your shoulders and stay soft. The polyester lining is durable and soft, both preventing the fabric from fraying and protecting your computer from scratches.[Designed For Travel]: The two handles set on top and one side, which allow an easy switch between backpack and suitcase. The luggage strap on the back can be installed on the suitcase for easy long-distance travel. The backpack is very easy to carry and suitable for commuting, business trips, hiking, camping and other outdoor activities.[Meet Daily Needs]: External charging interface, convenient to charge the mobile phone by connecting the mobile power supply (Power bank is not included). Shoulder straps with adjustable anti-slip chest belt and quick release. The bidirectional zipper can be opened and closed smoothly without jamming. Perfect for everyday use. High quality materials and excellent craftsmanship ensure long-lasting durability.