These are gorgeous mugs that are great for hot beverages, but the clear glass makes them excellent for layered desserts as well. Compared to ceramic mugs, they much lighter, not as hot to the touch, and don't retain heat as well. That isn't to say that the insulation isn't effective; it absolutely does work to keep hot drinks hotter and cold drinks cooler, just not as well as solid ceramic.That said, the weight is much lower. So if you like to drink big, but want a lighter touch then these are aSee full review