An evening dress is a long flowing women's dress usually worn to a formal affair. It ranges from tea and ballerina to full-length. Evening dresses are often made of elegant fabric such as chiffon, velvet, satin, or silk. An evening gown can be any silhouette - sheath, mermaid, A-line or trumpet shaped - and may have straps, halters or even sleeves. It aims to show women's beauty and elegance to the most.