Think cups are lovingly created to enhance your drinking experience. The reusable cup is made from borosilicate glass which is durable and can withstand extreme changes in temperature. The food grade silicon lid is a pleasure to drink from and the band keeps your fingers cool and your coffee hot! above all think cups help to save our planet by reducing the amount of waste that is generated from disposable coffee cups. Dishwasher microwave safe. Standard barista sizing. Bpa chemical free. Food grade 12oz, 340ml mist