Each cup features borosilicate glass that can withstand extreme changes in temperature, paired with a food-grade silicone lid and band, which creates an insulating shield that is soft and a pleasure to hold. 
 
Most importantly, each Think Cup helps to save our planet by reducing the amount of waste generated from disposable coffee cups.
 
 FEATURES:
 
12oz (354ml) Cup Capacity
Borosilicate Hand Blown Glass
Food Grade Silicone Lid & Band