Backpack Square 30L Waterproof Inch PC Business Laptop Back with USB Charging Port Outdoor Travel Disaster Prevention Commuting Storage [AISFA] Men's

[Large capacity 30L backpack] Size: (45+13)cm*32cm*20cm (can be expanded) Weight: Approx. 1KG Capacity: Approx. 30L With 25 pockets, it has excellent storage capacity and is great for any occasion. Backpack for men. Easily handle A4 size documents on a 17-inch PC! Due to manual measurement, there may be small errors. [Upper and lower two-layer structure] AISFA's original upper and lower two-layer structure design. It is a two-layer type with storage space divided into upper and lower sections. The lower pocket of the large-capacity backpack is made of waterproof EVA material, so you can store shoes, lunch boxes, and wet umbrellas! It is especially effective during the rainy season. [Super strong retroreflection] Combines daisy chain and reflective material. Significantly improves visibility from cars and pedestrians at night, in the dark, and on rainy days. The nighttime visibility range of reflective material is up to 100m. [Emphasis on functionality and excellent ease of use] ⭐ Anti-theft: There is a hidden pocket on the back to prevent theft when you are out and about! ⭐Comfortable to carry: The S-shaped shoulder has a breathable mesh design and the length can be adjusted as needed, effectively relieving shoulder pressure! ⭐Card pocket: Pass through the ticket gate without stopping! ⭐Chest belt: You won't get tired even if you carry it for a long time! ⭐Uses a highly durable SBS double zipper. You can rest assured that it won't get damaged even when carrying a lot of luggage! ⭐Carry-on function: Can be fixed to your suitcase for easy movement! [Blade-resistant fabric] Made of high quality nylon material, it has wear-resistant, durable and strong characteristics. Blade-resistant material that cannot be cut even with a knife! ! The material has excellent scratch resistance and does not show dirt or dust. [Independent PC storage space] For modern businessmen, a laptop is an essential work item. The back of the large main room can easily accommodate a 17-inch PC! A business backpack protects your PC or tablet from shock and vibration. [Useful in a variety of situations] It is equipped with a carry-on function that is essential for various situations such as daily commuting to work or school, camping, mountain climbing, business trips, travel, fishing, etc. It can be used not only for everyday use, but also as a disaster prevention backpack for emergencies. It's the perfect gift not only for yourself, but also for Christmas, Father's Day, birthdays, etc.! [Can be charged anytime and anywhere] To improve people's lives. Work more efficiently than ever with a rucksack that not only transforms into an elegant business backpack, but also lets you charge your electronics and stay connected to the world while you're on the go. [AISFA Reliable Quality Assurance] If you have any problems when using the backpack, please feel free to contact us. Please rest assured that we will take responsibility and support you until the end. When contacting us, we would appreciate it if you could provide us with the "order number" and "product name" of the purchased product. *Intentional damage is not covered by the warranty. Contact method: [Account service] - [Order history] - [Contact seller] [To customers] "AISFA" is the only official store of the AISFA brand on Amazon. When ordering, please be careful of counterfeit products. In Japan, the AISFA trademark number is: 6118585 We make every effort to ensure the quality of our products, but if there is a problem or you are not satisfied, please contact our store. If there is a defect in the product, we will promptly replace it, so please buy with confidence.