Spiegelau has made it it's business to produce the best possible wine glasses. This means bringing wine glasses to market that meet the highest standards of quality and aesthetics as well as durability and value retention. This includes the Spiegelau Authentis glass series. Larger glasses with a wide goblet are best suited for powerful red wines with a large bouquet. White wines are usually enjoyed from narrower glasses that concentrate the finer flavors of the wine.