A brassiere, commonly known as a bra, is a form-fitting undergarment designed to support and shape the breasts. It typically consists of two cups, straps, and a band that wraps around the torso. Bras come in various styles, sizes, and materials, catering to different body types and preferences. They can be worn for comfort, support, or aesthetic purposes. The history of the brassiere dates back to ancient times, with early versions found in various cultures. Modern bras were popularized in the early 20th century, evolving into a fashion item as well as a functional garment. Today, bras are an essential part of many women's wardrobes.