Although a standard wine bottle holds 750 milliliters, or 25.4 ounces, wine bottles vary in shape, depending on regional, cultural and marketing considerations. The basic shapes identify wines by type in most parts of the world. Bordeaux-style wines (red wines made of blends relying on Cabernet Sauvignon, Merlot and/or Cabernet Franc; whites made of Sauvignon Blanc and/or Sémillon) are put in Bordeaux-style bottles with straight sides and high shoulders. Burgundy’s traditional varieties (Pinot Noir and Chardonnay) go into slope-shouldered Burgundy-style bottles. Aromatic wines (such as Riesling and Gewürztraminer) usually go into tall, narrow German-style bottles and sparkling wines go into thick, heavy Champagne bottles with deep punts designed to withstand the gas pressure inside.