Williams Sonoma Heart Double Wall Latte Mug

Featuring an inner layer shaped like a heart, this double-wall latte cup boasts an eye-catching effect that serves a practical purpose. The two seamless walls of borosilicate glass are separated by an insulating layer of air, so coffee and tea stay piping hot, yet the exterior remains cool and comfortable. I Mug Crafted of mouth-blown glass with fire-polished rims. Glass remains cool to the touch with hot drinks and will not “sweat” with cold drinks. Glass will not become cloudy over time. Microwavable and dishwasher safe. 4 1/2″ diam., 3 1/2″ high (6″ wide including handle). 13-oz. cap.