1. The front and back sides of the fashionable silhouette can be backed up, without redundant and complicated designs. The overall level is clear, simple and fashionable, with a streamlined appearance and humanized design.2. Convenient headset hole design allows you to listen to music while walking, or listen to the phone at any time.3. Strong and durable, light and convenient, high-density oxford fabric, comfortable and durable, suitable for long-term use.4. It is very suitable for business/leisure/travel/bicycle/beach and daily use. It is very suitable for use as a sling backpack. Put this sling bag comfortably on your shoulder or on your chest to prevent thieves and keep your hands free.