Contigo Autoseal West Loop Stainless Steel Travel Mug with Open-Access Lid (Discontinued by Manufacturer) 16-ounce stainless steel travel tumbler in black for both cold and hot beverages Patented AUTOSEAL lid automatically seals between sips to ensure no spills Vacuum-insulated technology keeps beverages hot for 4 hours and cold for 12 hours Contoured body makes this travel mug easy to hold; fits most standard car upholders Hand washing recommended; lid is dishwasher safe