About the DOURO Double Wall GlassesAfternoon tea with a friend, cradling a hot cup of cocoa on a rainy day, enjoying a beer on the patio in the sun… Sometimes the smallest things bring us so much pleasure. Make these moments even more unique with the Douro double wall glasses. Individually mouth-blown from heat-resistant borosilicate glass, DOURO double wall glasses keep hot and cold drinks at their optimum temperature for longer. A silicone vent at the base of the glass regulates its external temperature – so you can wrap your hands around a hot drink without risk of scalding, or serve a cold drink or chilled dessert without leaving messy condensation rings. But it’s their stylish appearance that captures the imagination. Their double wall construction causes a floating effect in your glass, while the fine grooves of our DOURO range resemble rolling wine terraces. Available in a choice of sizes with matching carafes, these glasses are perfect for serving a range of hot and cold drinks. Main Features & BenefitsSet of elegant drinking glassesPart of our unique range inspired by Portugal’s magical Douro ValleyInnovative double wall construction that keeps hot and cold drinks at their optimum temperature for longerIdeal for serving hot or cold drinks Also perfect for serving soup and dessertsMade of mouth-blown, heat-resistant borosilicate glass that won’t alter or impair the taste of its contentsHydrophobic silicone vent equalizes the air pressure between the two layers of glassDishwasher, microwave and oven safe (up to 350ºF/176ºC) Available in a choice of sizesMatching carafes availableUse & CareWash in warm, soapy water before first use and dry thoroughly. For all subsequent uses, wash and dry by hand or pop in the dishwasher. DOURO double wall glasses are also safe to use in the oven and microwave. Colour: Transparent Material: Borosilicatglas, Silikon Dimensions: LxBxH: 8.60 x 0.09 x 8.60 cm