This bag is made with 2 layers of vinyl coated nylon with a heavy reinforcement fabric in the bottom. There is a PVC rod at the top to keep the shape of the bag and reinforce the attachment grommets. There are 2 grommets in the bottom for drainage. This bag holds all Pistol grip battery tools and keeps them handy for repeated use. The web loop with Hook & Loop holds the tool in place while in transit so it does not exit the bag.