Originally created for fizz (although the shape means the effervescence eventually evaporates) the Coupe cocktail glass is similar to the Martini glass in the sense that it is often used for short, straight up drinks. The biggest swaying factor for using the Coupe over the Martini glass though, is that it brings a much welcomed stability compared to its dainty cousin.
The Coupe is most commonly the glass of choice for the Manhattan, Sidecar, Daiquiri and Brooklyn cocktails, as the larger rim makes way for a number of garnishes and better holds larger quantities of liquid.