Riedel Vinum Glasses are designed to help enhance the qualities of specific varietals. The egg-shaped design of the Champagne Wine Glass allows the complex layers of sparkling wines to grow and intensify, while the larger rim diameter releases these qualities in a way that a narrow flute opening can not. The Viognier / Chardonnay Glass allows for the expression of freshness, spiciness, and minerality characteristic of this varietal. These crystal glasses come as a set of two.