A type of snap fastener characterized by a decorative, often iridescent, button-like cap made from simulated or genuine pearl is commonly found on Western-style shirts. These fasteners provide a secure closure mechanism, replacing traditional buttons and buttonholes. For example, a cowboy shirt might feature several of these closures down the front placket and on the pocket flaps.
This closure method offers both aesthetic appeal and functional advantages. Historically, they gained prominence in Western wear due to their durability and ease of use, particularly for cowboys and ranchers who needed clothing that could withstand rugged conditions. The embellishment added a touch of flair to practical garments. The advantage of not needing to sew buttonholes also contributed to their popularity.