Crafted from polyester with a mesh-like fabric, the bags allow water to flow in and around the items placed inside to ensure they are thoroughly cleaned. Within the bags, delicate items like underwear, bras, stockings, and blouses will be protected and maintained like new. These laundry bags are also handy for holding clothing with hooks and sharp fasteners separate, as well as keeping track of small items like socks that are easily misplaced.