Bar340 by Cambridge 12 oz Stemless Wine Double-Walled Tumbler with Lid, Black

I tested the Bar340 12-Ounce Copper Stemless Wine Tumbler with Lid using the soda I keep by my bed at night. The Bar340 12-Ounce Copper Stemless Wine Tumbler with Lid is double wall insulated like many other tumblers on the market today. It says it “brings a new look to cocktail hour” and I must agree, it is simply beautiful. It has a smooth copper color that captivates your attention at first sight. I find myself just looking at it sometimes. The Bar340 12-Ounce Copper Stemless Wine Tumbler with Lid advertises that it will keep your drink's temperature constant. I like that choice of words because on the label, it says this tumbler is suitable for “hot or cold beverages.” Obviously, I keep ice in my soda. The double wall insulation maintains the temperature so well that after a full night of sleep and waking a couple of times when I take a sip, there is still at least ½ the ice that I put in the cup about 9 hours earlier. The Bar340 12-Ounce Copper Stemless Wine Tumbler with Lid also advertises having a lid that provides a “vacuum tight seal.” The result of the vacuum seal and the small size of the drinking hole in the lid is that my soda was not only still quite cold, it even still had some carbonation left in it! Nobody likes drinking soda with no “fizz” and with this cup you will never have to drink flat soda.