Riedel, Red Wine 22.5 oz
The Riedel Red Wine glass is 22.5 ounces. Claus Riedel was the first person to design a functional wine glass, so you are getting a glass that has been around for a long period of time.
“The finest glasses for both technical and hedonistic purposes are those made by Riedel. The effect of these glasses on fine wine is profound. I cannot emphasize enough what a difference they make.” Robert M. Parker, Jr. The Wine Advocate
Claus Riedel was the first person in the long history of the glass to design its shape according to the character of the wine. He is thus the inventor of the functional wine glass.