Bought a double-walled glass tumbler

Because of an add somewhere i bought this kind of coffee tumbler. I was looking for the metal on the outside with a removable glass insert inside but the one i found was out of stock of the color and size that i like. So i just decided to get the glass one and gave to my husband as a birthday gift and i'm glad he loved it! It is lightweight and comfortable to hold because of the grips it has. Whenever he is in a hurry to go to work, he just brought this coffee tumbler with him. We just have to handle it with care when using or washing it so that it will last for a while. It's fragile!