Contigo Autoseal West Loop Stainless Steel Travel Mug with Easy-clean Lid. 2-Pack Patented AUTOSEAL lid automatically seals between sips to eliminate spills and leaks Lid underside flips open completely for easy cleaning Double-wall vacuum-insulated stainless steel keeps beverages hot for 5 hours or cold for 12 hours Top-rack dishwasher safe lid; 100% BPA free Fits most single-serve brewers and car cup holders