With its signature black bases achieved by adding Cobalt and Manganese, which makes the crystal cools and hardens much faster, Sommeliers Black Tie is undoubtedly a challenge even for the most skilled artisans but Riedels decided to further raise the bar with a beautiful red stem jacketed in clear crystal. Classically shaped in a slim and long silhouette, this glass ensures that the wonderful tingle of champagne's bubbles is experienced on the tip of the tongue.