Business Large Extended PC Computer Dry and Wet USB Charging Water Business School [SUNOGE] Backpack, Men's Backpack, Rucksack, Capacity, 3-Way

[37L large capacity/expanded gusset] Size: 48*32*17cm (before expansion: 22L)/48*32*29cm (after expansion: 37L); By expanding the gusset, storage capacity can be increased by 68% smartly UP! You can easily store items essential to modern lifestyles such as laptops up to 17 inches, documents, A4 files, B4 files, 2-3 days worth of clothes, notebooks, pens, wallets, folding umbrellas, water bottles, etc. Easy for commuting to work, school, going to the gym, as well as business trips and trips for 2-3 nights. [Multi-functional, 180 degree opening/closing, dry and wet separation, anti-theft, USB charging port] Packed with functions that meet the needs of modern life. ①The main pocket can be opened wide by approximately 180 degrees like a suitcase, so you can easily put it in and take it out. ② Added dry and wet separation pockets to easily separate dry and wet clothes to maintain cleanliness. ③There is a hidden pocket on the back, so you can safely store valuables such as your wallet and smartphone. ④USB charging possible: There is a USB charging port on the side, so you can charge it while carrying it on your back. ⑤ Comes with a special belt that can be attached to a suitcase (relieve your shoulders by using a carrier supporter) ⑥ Comes with a key chain to which you can attach keys, etc. (save you the trouble of looking for your keys) [Water repellent specification for sudden rain] 900D carbon PU coated oxford has increased water resistance and a subtle glossy appearance, is resistant to pulling and friction, does not stretch or contract, and gives off a mature appeal. What's more, it's sturdy, well-made, and finished with reliable triple stitching. It doesn't get damaged even if you put heavy loads on it, and can be used for long periods of time. [Excellent Breathability] The back and back of the straps are made of highly breathable mesh material on top of cushioning material, reducing the burden on your shoulders and back while providing a comfortable carrying experience without getting stuffy. A chest belt is included as standard, effectively distributing the burden on your shoulders and back, and preventing shoulder misalignment. The back part has a structure that allows it to be set up with a suitcase, making it convenient to carry around and can be used for a wide range of purposes such as business trips and travel. It is especially suitable for office workers. An emergency whistle has been added, suitable for emergencies, disaster prevention, outdoor activities, camping, etc. [Excellent ease of use / 3-way specification] It has a 3-way specification (backpack, horizontal carry type, vertical carry type), which has the advantage of being able to be used according to the occasion. Equipped with a dry/wet separation pocket, hidden pocket on the back, two front pockets, and an organizer, it is very easy to use and organizes small items neatly. It is a business backpack that can be used according to the occasion, with 3WAY specifications (backpack, horizontal handbag, vertical handbag type).