A brassière, commonly shortened to "bra", is an undergarment primarily worn by women to support, cover and shape the breasts. Designs range from simple soft garments intended for everyday comfort to decorative pieces used as lingerie for intimate or aesthetic purposes. Modern bras balance function—support and posture—with fashion and personal preference, and they are produced in a wide range of sizes and styles to meet practical and stylistic needs.

Structure and materials

Most bras are built from a combination of a band, cups, straps and a fastening. Common elements include:

  • Cups: shaped fabric pieces that hold and shape each breast.
  • Band: encircles the torso and provides the majority of support.
  • Straps: adjustable components that help position the cups; some styles remove straps entirely.
  • Underwire and padding: optional components that add lift, separation or contouring.
  • Fastenings: typically hook-and-eye closures at the back or front, sometimes zippers or snaps.
  • Materials: cotton, silk, lace and synthetic blends are chosen for strength, stretch and comfort.

History and development

Supportive garments for the chest have existed in different forms for centuries, but the item recognized as the modern bra developed from late 19th- and early 20th-century shifts in clothing, tailoring and available materials. As elasticized fabrics and lighter construction techniques became available, many people moved away from corsets toward separate breast support. The garment attracted commercial attention beginning in the nineteenth century and rose to broad popularity alongside mass-produced apparel and changing social roles for women.

Types and common uses

Bras are made for different activities and effects: some prioritize comfort, others shaping, and others performance. Examples include:

  • T-shirt and everyday bras: smooth cups designed to be invisible under clothing.
  • Sports bras: constructed to reduce movement during exercise and distribute weight.
  • Push-up and plunge styles: designed to enhance cleavage and alter silhouette.
  • Bralettes and soft-cup bras: minimal structure for comfort and a casual look.
  • Nursing and post-surgical bras: adapted for breastfeeding or medical recovery.

Beyond utility, bras have long been a feature of fashion and personal expression, and they became a prominent element of 20th-century fashion and the modern lingerie industry.

Discussion about bras touches clothing technology, body image and social norms. Expectations about when and whether to wear a bra vary by culture, age and personal comfort. Topics of public conversation include sizing accuracy, inclusive fit, workplace dress codes and symbolic acts related to bodily autonomy. Retailers and specialty services increasingly address diversity in body shapes and preferences.

Choosing a properly fitted bra can improve comfort and posture: many fitters recommend measuring band and cup separately and trying several styles. Care instructions usually advise gentle washing, avoiding high heat and following manufacturer guidance to preserve elasticity and shape. For practical consumer information and fitting services, readers can consult resources intended for women seeking guidance on selection and maintenance.