This mesh drawstring backpack features is made from 100% durable polyester. A spacious main compartment for storage, small zip compartment, and mesh venting for small fast ventilation drainage. Adjustable, over-the-shoulder straps allow for comfortable, convenient carry, while the secure barrel-lock closure at the top provides quick and easy access to your gear.Outside side zipper pocket and a external mesh water bottle pocket for additional organization and quick access to essentials.