Bag called travel packages, by definition refers to the travel or tourism prepared for a class package. When is leaving home to travel, or work or visit, or to join in nature enjoying the sun and rain, you can be daily necessities or want anything close at hand and easy to carry loaded up in order to facilitate a class package. Bag can be divided into backpacks, waterproof cycling saddle bag and haul packages. When choosing, consider the volume and style, users should also consider the size and shape as well as weight-bearing capacity and other factors