Starbucks® Double Wall Ceramic Traveler, 10 fl oz Our popular ceramic travel cup features our Siren logo and a new splash guard for an optimal drinking experience. The double wall construction helps keep hands cool and drinks warm, and the locking lid minimizes spills when secured properly. Grippy rubber pad on bottom. Holds up to 10 fl oz of coffee or other favorite beverage. Handwash recommended, do not microwave.