[Durable and waterproof] The drawstring backpack is made of high-quality nylon fabric. This drawstring bag is not only durable, but also waterproof and easy to carry [Drawstring closure] The sports and fitness backpack features a drawstring closure design for quick storage of items. The shoulder strap of the drawstring backpack can be adjusted in length as needed High capacity The drawstring bag size is 33cm/13 inches (length) x 44cm/17.3 inches (height). The outermost layer is a zippered pocket for storing books or small items. The main compartment is large enough to accommodate sportswear, towels, books, and daily necessities. Color: Black [Lightweight and foldable] The drawstring backpack weighs only 0.28 pounds (130 grams). This sports backpack is not only lightweight, but can also be easily folded and stored when not in use. Perfect for outdoor sports and shopping [Suitable for various occasions] Drawstring backpacks are a great choice for various occasions, such as sports, gym, yoga, travel, hiking, camping, mountaineering, swimming, and shopping