Contigo Snapseal Vacuum-insulated Stainless Steel Travel Mug, 16-ounce, Violet Vacuum-insulated stainless steel keeps beverages hot for 6 hours and cold for 12 hours Snapseal lid features a 1-piece leak proof lid Fits most standard car cup holders & under single serve brewers Convenient one-handed drinking for both left- and right-handed users Top-rack dishwasher safe; 100% BPA free