An Inverted pleat is a common drapery header type that adds texture and depth to the textile, while turning the fullness of the curtain inward. It is the reverse of a box pleat, which is made while taking depth, underlay, and spacing into account. Inverted pleats involve two folds that are brought to a center point of a textile, sewn at the top, and pressed to make a crisp pleat. The pleats can be enforced using pleater tape and pleater hooks which ensure that the pleat stays in place and lays properly. The pleater hooks are dual purpose, as they synch the fabric together to form and retain the pleats, while also having a loop at the opposite end that allows it to be attached to a rod. Curtains with inverted pleats can be hung using hardware such as a rod and rings, an exposed track, a hidden track with cornice, or a curved track.