Wine bottles are containers specifically designed to hold and preserve wine. They are typically made of glass, which protects the wine from light and air, both of which can spoil its quality. The standard size for a wine bottle is 750 milliliters, but there are larger and smaller options available, such as magnum bottles that hold 1.5 liters. The shape of wine bottles can vary depending on the type of wine. For example, Bordeaux bottles have straight sides and high shoulders, while Burgundy bottles have a wider base and sloping shoulders. Each design serves both aesthetic and functional purposes, influencing how the wine is stored and served.