AISFA Square PC Business Laptop Expandable 30L USB Charging Suitable for Outdoor Travel Men's Backpack, 17-inch Backpack, Backpack, Backpack,

[Dual-Layer Construction | 30L Large Capacity] Dimensions: (45+13)cm x 33cm x 18cm, Weight: Approximately 1kg, Capacity: Approximately 30L. This men's backpack features a popular square box design, a wide gusset, and 19 pockets for excellent storage capacity, making it perfect for any occasion. Easily fits a 17-inch laptop or A4-sized documents! Measurements may vary slightly due to manual measurement. [Expandable | EVA Fabric | SBS Zipper] AISFA's unique, compact design features the ultimate hidden wet/dry bottom compartment. The wet/dry compartment is made of waterproof, breathable EVA material and can hold shoes, lunch boxes, wet umbrellas, clothing, and more. This is especially effective during the rainy season. The zipper is made with a durable SBS double zipper, so you can rest assured that it will not be damaged even if you pack a lot of luggage. [Super Strong Retroreflective | Knife-Resistant Fabric] Daisy chains and reflective material combine to dramatically increase your visibility to cars and pedestrians at night, in the dark, and in the rain. The reflective material has a nighttime visibility range of up to 50 meters. Made with high-quality nylon material, it is abrasion-resistant, durable, and sturdy. Knife-resistant material that can't be cut with a knife! It's scratch-resistant and doesn't show dirt or dust. [Emphasis on functionality and ease of use] ⭐Anti-theft: A hidden pocket on the back prevents theft while you're out and about! ⭐Comfortable to wear: The S-shaped shoulder strap features a breathable mesh design and can be adjusted to fit your needs, effectively relieving shoulder pressure! ⭐Card pocket: Pass through ticket gates without stopping! ⭐Chest strap: Reduces fatigue even when carrying for long periods of time! ⭐Carry-on function: Attaches to suitcase for easy transport! [Direct Zipper | Key Holder | PC Storage Space] ★Direct Zipper: Convenient back direct zipper for direct access to the main compartment. ★Separate PC Storage Space: Thick cushioning protects your PC, tablet, etc. from shocks and vibrations. ★Key Holder: The main storage space has a key holder so you can easily find your keys. [USB Charging Port | Earphone Hole] The backpack has a USB charging port on the side, allowing you to connect a portable power source from inside the backpack. You can charge your phone while wearing it, and by connecting it to the charger, you can keep your phone charged while traveling. There's also a dedicated earphone hole on the side, so you can listen to music while wearing the backpack. *Power bank not included. [Useful in a variety of situations] This backpack is perfect for daily commutes, camping, mountain climbing, business trips, travel, fishing, and more, thanks to its carry-on functionality. It's perfect for everyday use, as well as an emergency backpack. It's also a great gift for yourself, Christmas, Father's Day, birthdays, and more! [Thank you for your understanding.] Due to manual measurement, there may be slight errors. When opening the package, you may notice a smell from the surface treatment chemicals or adhesives. This is unavoidable due to the characteristics of the material and treatment, so if you are concerned about the smell, remove the backpack from the package, open the main opening, and let it dry indoors for a while. [AISFA Reliable Quality Guarantee] If you have any problems using this backpack, please feel free to contact us. When contacting us, please provide your order number and the product name of the item you purchased. *Intentional damage is not covered by the warranty. How to contact us: [Account Services] - [Order History] - [Contact Seller] [To our customers] The only official AISFA brand store on Amazon is "AISFA." Please be careful of counterfeit products when ordering. In Japan, the AISFA trademark number is: 6118585 Please note that the backpack will be shipped folded due to environmentally friendly packaging, and will need to be left unpacked for a few days before use to allow the backpack to return to its original shape.