1. This backpack is made of PU material, which is soft in texture, easy to carry, and maintains good durability in daily use. 2. The bag body is vertical square in shape, with a simple and elegant design, incorporating stitching and lock elements to reflect exquisite craftsmanship. 3. The opening method is a zipper buckle, which is convenient to open and close, allowing for quick and efficient access to items. 4. The size of the bag is moderate, not too bulky to be cumbersome, nor too small to hold daily necessities. 5. The internal structure is reasonably designed with an interlayer pocket and a certificate pocket to help classify and store items, making it easy to quickly find the required items. 6. The outer pocket is equipped with an inner patch pocket, which can hold commonly used small items for easy access at any time. 7. The lining material of the bag is polyester, which is strong and durable, and can better protect the items inside the bag. 8. Suitable for daily work commuting or business travel, adding points to the overall look and easily coping with various business occasions.