An underwire bra is a type of brassiere that features a thin, semi-circular wire sewn into the bottom of each cup
. This wire provides additional support and shape to the breasts by lifting and separating them.
Underwire bras are designed to contour the bust and often offer a more defined silhouette, making them a popular choice for those looking for enhanced support and a more flattering fit.
They come in various styles, including push-up, full-coverage, and balconette, and are available in a range of sizes to suit different body types.