Isothermal mug

High quality double-walled glass. This clear borosilicate glass has a sleek and contemporary design with bamboo lid with silicone ring. An insulating layer of air forms between the heat-resistant glass walls. If you fill the glass with a hot drink, the outer wall remains cool and easy to hold. Not dishwasher-safe. Capacity 350 ml. Each item is supplied in an individual brown cardboard box.