The traditional garment most associated with the honoree at a quinceañera is a ball gown.
The formal dress gives the celebration a ceremonial and festive appearance. Quinceañera gowns are often full-length and may resemble formal evening or bridal wear, although the style, color, neckline, and decoration vary widely by family, country, religion, and personal taste.
In older traditions, the dress helped distinguish the honoree during her formal presentation to family and community. Modern celebrations may use shorter dresses, jumpsuits, themed costumes, or several outfit changes. The ball gown remains the best-known conventional choice, but it is not a universal requirement.
The dress is sometimes incorrectly treated as proof that a quinceañera is a wedding. The two events can share formal clothing, attendants, music, and a ceremonial entrance, but a quinceañera celebrates a fifteenth birthday and has its own cultural history.