For the best drink at home. A double walled vacuum tumbler designed for a comfortable drinking experience. The double-walled vacuum structure keeps your beer ice-cold for a long time. It also prevents condensation, so you don't have to worry about your table or hands getting wet. We paid particular attention to the mouthpiece to ensure a smooth drinking experience. The elegant appearance also enhances the flavor. The capacity is 420ml, the perfect size for pouring a 350ml can of beer right down to the foam. The extremely thin mouthpiece is just 1mm thick. The small surface area that comes into contact with your lips allows you to enjoy the beer smoothly.