1. This single-shoulder bag is made of PU leather, which is strong and durable, scratch-resistant, comfortable, waterproof, and lightweight. It is equipped with protective zippers, protective pockets, buckles, and a polyester lining. 2. This single-shoulder bag has multiple compartments and pockets, including a hidden protective pocket, a phone pocket, and a large pocket that can hold all your items. The backpack comes with a strap and can effectively store your items such as cosmetics, tissues, keys, mobile phones, iPad minis, passports, water bottles, umbrellas, etc. There are multi-functional storage compartments and auxiliary compartments with functional pockets that can hold mice, books, papers, etc. 3. This single-shoulder bag is equipped with a USB charging port and an earphone jack. You can use the USB charging port to charge your phone and easily enjoy music. There is a built-in phone pocket in the shoulder strap, which is convenient for charging and listening to music while walking. 4. The flexible shoulder strap of the chest bag can be adjusted in multiple ways. You can freely adjust the shoulder strap according to your own preferences. At the same time, the breathable padded shoulder strap and back panel are comfortable and easy to carry, effectively dissipating heat instead of accumulating it. It is an excellent gift for relatives and friends! 5. It is a multi-functional bag that can be used as a waist bag, crossbody bag, single-shoulder bag, hiking bag, travel bag, casual bag, crossbody bag, and business bag. It is suitable for various occasions such as traveling, fitness, hiking, camping, cycling, family outings, and office work.