1. It uses advanced waterproof pure nylon fabric, which is light and durable. 2. It has soft inclusions, and the side edges of its front and rear covers and pocket opening are lined with super high density microfiber leather. Protect from the spinal curvature. 3. The front and rear covers uses soft body design, providing casual fashion, soft handfeel, waterproof, durability and other advantages. 210D's polyester lining. 4. The leisure handbag uses lightweight material, with a diagonal shoulder strap, containing a computer liner layer, and can fit into a 15.6-inch or below laptop.