Earlier it was coming in some selected styles but now with passage it comes in several styles like halt cocktail dress, wrap cocktail dress, sleeveless cocktail dress, single shoulder cocktail dress, line A style cocktail dress etc. However among these numerous styles, style of cocktail dresses are chosen to wear according to the occasion. As example, evening gowns are generally used to be worn in parties and sometime it is also worn by brides as wedding gown.