A whiskey glass is a type of drinking vessel specifically designed for serving whiskey. It typically features a wide bowl that allows the drinker to appreciate the aroma and flavor of the whiskey. Common styles include the rocks glass, also known as an old-fashioned glass, and the Glencairn glass, which is shaped to enhance the tasting experience. These glasses are often made from glass or crystal, providing clarity and elegance. The thickness of the glass can vary, with some designed to be sturdy for casual use, while others are more delicate and suited for formal occasions. Proper glassware can enhance the enjoyment of whiskey, making it a popular choice among enthusiasts.