Contigo 2-Pack Vacuum-Insulated Autoseal Travel Tumblers with Easy Clean Lid, Stainless/Blue 2 16-ounce stainless steel travel thermos for both cold and hot beverages Patented Locking AUTOSEAL lid automatically seals between sips to ensure no spills Vacuum-insulated technology keeps beverages hot for 4 hours, and cold for 12 hours Uniform body makes this travel mug easy to hold. Fits most standard car cup holders, Hand washing recommended; lid is top Rack "dishwasher safe"