Double-walled drinking glasses are not only practical but also stylish. This set of 3, made from 50% recycled borosilicate glass, offers an excellent way to enjoy drinks in various sizes. Here are the key features: 1. Material: The glasses are made of borosilicate glass, a temperature-resistant material that withstands heat without shattering. It is tasteless and lightweight. 2. Double-walled design: Each glass features a double-walled structure. An insulating air layer forms between the two layers of glass. This keeps hot drinks hot longer and cold drinks cool longer. 3. Sizes: The set includes various sizes. From espresso to tea to long drinks – you have the choice. 4. Includes bamboo spoon: The glasses come with 3 bamboo spoons, perfect for stirring drinks. 5. Dishwasher safe and microwave safe. You can easily clean them in the dishwasher.