Drawstring backpack is made of polyester fiber, which is durable and withstands daily wear and tear. This draw string bags pack itself is very light and you can easily folded it and put it in your pocket for unexpected needs likes shopping. The drawstring bag features a minimal, lightweight design with an open top so you can throw in your workout gear and go. Thick drawstrings prevent digging into your shoulders and help reduce your shoulder burden. Draw string backpack is suitable for gym, sports, travel, hiking, camping, summer camp and more outdoor activities. Quantity over 8000 ship by sea.