Recieved my mugs very well packaged. When I took them out the box I was very thrilled with how they looked and felt. So light weight and sleek! I immediately rinsed a cup and made tea. So I could test it's ability to stay intact and not be to hot to touch. I am highly impressed! The cup is warm to touch but it's not so how I can't hold it and the handle isn't hot at all. The glass didn't crack and I couldn't be happier with my purchase. [This review was collected as part of a promotion.]