1. Structural design
The structural design of the messenger bag is the most important, because it determines the performance of the bag in many aspects, such as practicality, durability, comfort and so on. The more functions of the package, the better. The overall design should be concise and practical. Don't be fancy.
Whether a bag is comfortable or not is basically determined by the design structure of the backpack system. The backpack system is usually composed of a strap, a belt and a back pad. A comfortable bag should have a wide, thick and freely adjustable strap, belt and back pad. The back pad should preferably have a sweat wicking ventilation slot.
2. Material
Including fabric and components:
The fabric shall generally have the characteristics of wear resistance, tear resistance, water resistance, etc. The more popular ones are oxford nylon cloth, polyester staple canvas, cow leather and leather.
The components include waist buckle, all zippers, shoulder belt and chest belt fasteners, cover and body fasteners, external belt fasteners, etc. These ring buckles are usually made of metal and nylon, so you should be careful when buying.
3. Workmanship
It refers to the quality of stitching process between shoulder belt and bag body, fabric, bag cover and bag body. It is necessary to ensure the necessary firmness of stitching, and the stitches should not be too large or too loose.
