The 30"x 40" mesh sports ball bag is made of heavy-duty nylon-mesh material, designed with an adjustable strap reducing shoulder stress, with a mesh construction, weighing less than a pound. The bag can hold 15 basketballs, and the mesh construction not only allows you to see precisely what is stored inside but also permits air to flow through the bag, eliminating dampness and odor, making it easy to carry and store. The mesh bag is perfect for sports balls, equipment, beach trips, events, and much more, holding everything you need for all your sports and outdoor events.