Features: 2021 Design-Vacuum CompressiveThis backpack has its own vacuum compression design. Is there a troublesome to pack and store backpacks on your trip? When putting clothes into a vacuum cavity, it is possible to unplug the air with a pump, thin, prevent a large sense of sensation, and store more things I can do it. (Power supply via pump. USB 5V port. Easily can be activated using a mobile battery.) Classic Black Business Backpack A durable and resistant oxford fabrics, classic black color, breathable sponge mesh back and strap. Notebook PC Compartments You can store 14.0-inch laptop computers, and more security can be further enhanced. [30-35L expandable design] The original capacity is 30 liters, dimensions 20.9 x 13.8 x 6.7 inches. After the extended backpack is expanded to 35 L. Deploy with zipper and buckle according to your request. The upper and lower two handles are set and can be carried on both vertical and sideways, and it is easy to switch backpacks and suitcases. The rear luggage belt is designed to be fixed to the luggage tube. The outdoors & business backpack for ideal for short trips for 3-6 days. [Large capacity & functions] Many compartments, organizing, and expanded backpacks can easily organize storage items easily. Vacuum pockets mainly put clothing and pants. Front compartments can contain books, magazines, power banks, pens, data lines, and other travel supplies that need to be retrieved frequently. A universal inner bag can store private things such as passport, wallet, glasses for case, and back compartments can especially put valuables such as laptops and tablets. [Durable and comfortable carrying] Our shoulders and handle are strong and bold line sewing, robust, breathable and comfortable. Alleviate the pressure on the shoulder and make it tired even after transporting for a long for time, and reduces pain. The zipper is smooth and strong, durable, and it is durable to use many times. for Ideal for all outdoor activities, such as outdoor activities, new semester, university, commuting, business trip, hiking, sightseeing and camping. Specifications: Gender: Unisex Color: Black Material: Oxford fabrics Size: 42x18x51cm/16.38x7.02x20inches (Approx) Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x Backpack