The Bodum Canteen Double Wall Glasses keep hot drinks hot without burning fingers and cold drinks cold without messy condensation, making them the ideal vessels for every beverage, from cocktails to cocoa. Individually mouth-blown by expert artisans, Bodum's proprietary Double Wall Glasses feature two walls of borosilicate glass, creating a highly effective layer of insulation. Silicone valve at base allows for changes in pressure. Also perfect for serving ice cream and soups. The Insulated Glass comes in a set of six pieces. Available in 0.2 liter capacity and medium in size.