High-quality material: The drawstring bag is made of high-quality nylon material, which is durable and can withstand daily wear and tear. With waterproof, wear-resistant and durable features, you can use it as an everyday bag anytime and anywhere. It comes with a comfortable, soft, thick, adjustable drawstring for easy portability and is stronger than most other drawstring bags for swimming. Extra large capacity: The size of the drawstring gym bags is 47 x 34 cm (18.5 inches * 13.3 inches). It can be easily folded to fit anywhere without adding any weight. Our drawstring bag includes the main compartment with an internal security pocket, as well as zippered pockets on the front and back. The main compartment can store books, clothes or other items, and it also has an external mesh pocket where you can place your water bottle. Adjustable Straps: The shoulder straps of the drawstring gym bag can be easily adjusted, you don't have to worry about your back resting low or high. Thick drawstrings protect your shoulders and help relieve your shoulders. Our shoulder straps are easy to adjust, you can easily adjust the strap length according to your height. Versatile: Our drawstring backpack is so light that you can easily carry it, suitable for many activities, gym, sports including swimming, walking, camping, hiking, running, shopping, perfect for school, camping, college! You can also decorate it as a nice gift for your family and friends on birthdays and festivals. Customer Service: If you are not satisfied with our drawstring bags, please contact us, we offer 24-hour customer service and we will give you a satisfactory solution as soon as possible.