Elevate your beverage experience with LIVIVO double-wall coffee mugs. Crafted from lightweight and durable borosilicate glass, these mugs feature an intelligent silicone vent for optimal air pressure. Experience the mesmerizing 'floating' effect of your drink within the double-layered walls, while enjoying superior thermal insulation. Keep your cold drinks crisp and condensation-free, and your hot drinks piping hot for extended periods. The outer surface of the mugs stays cool to the touch for a comfortable grip. With their dishwasher and microwave-safe design, these mugs are both practical and safe.