The Old Fashioned glass may go by several other names, like high-ball, rocks, or tumbler, but it has a few definitive qualities typically don’t change, making it the perfect cocktail glass. Old Fashioned glasses are sturdy by design, they have a wide rim, a thick base, and they fit the hand like a glove. Single or double, your Old Fashioned glass should be one that can you can turn to whether you’re pouring whiskey, brandy, vodka, or gin.