This drawstring backpack is made of polyester, with dimensions of 13.4in * 16.5in. The drawstring design enables easy opening and closing; you can store and access items with just a lift and a pull. The backpack is lightweight and doesn't take up space. It's easy to carry on the shoulder or stuff into large luggage, suitable for various scenarios where small items need to be carried flexibly.Suitable sports scenarios: Ideal for storing sports equipment (such as towels, protective gear, and change of clothes) during activities like running, fitness, and yoga. The drawstring design is convenient to carry and doesn't occupy much space. After sports, it can be easily carried away, freeing your hands. For example, it's very suitable for packing fitness clothes and water cups when going to the gym, and for holding small items like mobile phones and keys when running. Exclusive VIP account manager + priority production + priority shipping. The customer satisfaction rate is 97%, significantly higher than the industry average.