Double Walled Glass MugThis double walled glass mug keeps things simple, sturdy and good looking. The ribbed interior gives it a little texture, while the clear borosilicate glass keeps drinks hot or cold without burning your hands. It feels light, looks clean and fits right into any morning routine. Made from durable borosilicate glass and sized for everyday use, its the kind of mug you reach for without thinking. Coffee, tea, hot choc it handles it all.