If you like brands like PORTER, Yoshida Kaban, ACE, ELECOM, Tokyu Hands, Loft, Uniqlo, Columbia, Stussy, Gregory, Carhartt, Arcteryx, North Face, and Oakley, please consider this. This item is in excellent condition, having been used only a few times. 【Waterproof】Made of waterproof material, it has excellent water repellency, stain resistance, and abrasion resistance. 【Large Capacity】External dimensions: Width 28CM x Depth 7CM x Height 43CM Weight: Approximately 700g. It has ample storage space and well-placed pockets, including a separate compartment for a PC. The product looks and feels sturdy, and is very user-friendly. The pocket on the left side of the exterior has an open bottom, making it perfect for storing a water bottle or folding umbrella. 【Lightweight & Convenient】Made of ultra-lightweight material with a slim design. It's not heavy, so it won't bother you even during long-distance travel. There's a small pocket on the strap, making it convenient to take out and put in your transportation card. 【USB Charging Port & Anti-Theft Design】There is a USB port on the front side, with a cable on the back, allowing you to charge your phone using your mobile battery. There is a hidden anti-theft pocket on the back, so you can safely store valuables such as wallets and smartphones. 【Ergonomic Pressure Reduction Design】The shoulder straps are wider to reduce shoulder fatigue, and the back is breathable, providing a comfortable and pleasant wearing experience.