Innovative 350ml double wall glass tumblers designed for versatility. Made from mouth-blown, heat-resistant borosilicate glass, the double wall maintains beverage temperature while ensuring the glass is comfortable to hold. A silicone vent at the base equalises air pressure between the glass layers, reducing condensation and heat transfer. Suitable for hot or cold drinks, soups and desserts, it offers a wide range of serving options in a single glass design. Microwave and oven safe. Presented in a printed Bodum branded gift box.