Contigo Autoseal West Loop 1.1 Stainless Steel Travel Mug with Open Access Lid, 16-ounce, Matte Black / Vivacious, 2-pack Patented AUTOSEAL lid is 100 percent leak proof and spill proof and offers convenient one handed drinking Vacuum insulated double wall stainless steel keeps beverages hot for 4 hours and cold for 12 hours Lid is top rack dishwasher safe while body is hand wash using non abrasive cleansers to preserve the painted finish Fits most standard car cup holders Top-rack dishwasher safe lid; 100% BPA free