The handy machine-made Viognier and Chardonnay glass of the space-saving glass collection O wine tumbler attracts attention through its stemless design. This makes it less susceptible to glass breakage and easy to put into the dishwasher. The classic Riedel shape allows young wines to express all their invigorating freshness, while more mature wines are encouraged to deliver the nutty, spicy, mineral flavours. This glass is designed that the low acidity is delivered in a way that sets off the alcohol and rich flavours of the wine, highlighting its velvety, supple texture, emphasizing the fruit and ensuring a long, balanced finish. O is the ideal glass for everyday use and for every occasion. It is fun, feels good to hold, looks trendy and it works! All Riedel glasses are dishwasher safe.