These brandy snifters are excellent. They are very thin, just as they should be to allow the heat from your hand to volatilize the aromatics which are then concentrated in the bowl of the glass, and are, thus, fragile. As long as you treat them as fragile glass rather than a beer stein, you will have no problems. The large volume allows the full development of the aromatics and presents an enjoyable experience while sipping a good brandy. Highly recommended!