The main feature of cocktail glasses are their inverted bowls. But they might or might not possess a stem. Stem glasses tend to be drink specific, like the martini glass. While stemless glasses are the glass of choice for mixed drinks. As the name infers, Cocktail glasses are commonly used for serving cocktails. The glass’s shape is derived from cocktails being served chilled and because cocktails tend to contain aromatic elements that the glass’ wide bowl places directly under a drinker’s nostrils while sipping. Thus ensuring the aromatic elements of the drink have their desired effect.