They are made of heat resistant, super durable borosilicate glass and have a silicone sleeve so you can hold you cup no matter how hot your drink is.
The lid is a silicon “flip to the side cover” that covers the drinking hole when you are not drinking and stops you from spilling when carrying your drink around.
Borosilicate glass is stronger, remains clearer than soda lime and regular glass and withstands rapid and extreme temperature changes.
The silicone slip insulates your drink, keeping it comfortable to hold and helps keep your drink warmer for longer.
This lightweight, eco-friendly design benefits the environment.
Made from borosilicate glass with a silicon sleeve and lid.
Lightweight, food safe and BPA free
Microwave and Dishwasher safe (top level / handwash recommended)
Size: 454ml / 16oz