Starbucks Stacking Mug - Navy, 14 Fl Oz Dive into the dark blue depths of this ceramic coffee mug from our Stacking Collection. Fine dark specks on this mug create the appearance of a sandy texture, while the coffee-brown edges and interior offer a deeper contrast. Buy several mugs and stack them together, or mix and match with other stacking mugs. Laser-etched Starbucks name on side. Holds 14 fl oz. Dishwasher and microwave safe.