Room Essentials Chesapeake Window Panels in assorted colors give your home that quick makeover you were looking for. Its amazing how much difference window treatments can make in a room, especially when the natural light is allowed to stream in. These window panels are insulated so youre not only improving your home décor, youre also increasing the energy efficiency of your windows. Made of 100% polyester, these curtains are easy to care for and always look fantastic. Machine wash in cold, tumble dry.