The garment is used for chest binding. It can be made with elastic materials, such as synthetic fibers, elastic fabric, or more constricting materials, such as cotton, linen, or rigid synthetic fibers. ‘Binder’ can refer to clothing specially created for chest binding or improvised clothing, made with recycled materials found at home. Any garment used to mask the breast can be a binder; one of the most problematic traits from an FtM point of view is visible. The breast is one of the secondary traits that bring more discomfort during the passing phase, many guys to hide it, even create binders with packaged Scotch, making the process painful and dangerous.