These drawstring backpacks are designed with strong and durable polyester exteriors. The strings are built to resist constant wear and tear and can be easily adjusted, making these suitable for people of all ages and sizes. The drawstring closure at the top ensures your items are kept safe and secured inside its main compartment. TvineCreations can also provide promotional drawstring backpacks printed with your logo, graphics or text. Simply notified us of what product you want and the artwork you would like printed. We will send you a proof of the design for your approval before printing.