One set of glasses was perfect. One glass of the other set was flawed(protrusion on the bottom) and doesn’t sit level on a surface so it wobbles. I was disappointed never expecting that from zwilling

I am sorry to disagree with the majority. It's a great-looking glass. But it has a rounded bottom and tips over very easily. I consider that a serious defect. Sorry, but will not order again.

Great glassware. Cleans well in dishwasher, no sweat.

These are fabulous. I live in the desert and I want something that will keep the temperature nice and cold in the summer and they’re very sturdy. A great outdoor drinking glass perfect iced tea.