This glass is unusual in that it can be used for both a red Zinfandel and a white Riesling, or even a sparkling Vouvray. The set of four Vinum glasses will nicely augment an existing wine glass collection or start a budding oenophile on building one. The Riedel Zinfandel/Riesling glass, tempers the alcohol and accentuates the rich berry and spice characteristics of Zinfandel, while gently interweaving the acidity, tannin, and fruit to create the perfect balance of components.