Trudeau Erin 16-ounce Stainless Steel Travel Tumbler, 3-Pack 16-ounce travel tumbler. Designed to keep your drink warmed while traveling. Easy to use flip top lid mechanism. Guaranteed leak-proof. Great for traveling. Double wall insulation ensures liquids are kept hotter longer, up to 2-hour. Easy to carry comfortable soft grip handle; non-slip base Exterior made of stainless steel; interior made of high density polypropylene. BPA free. Five year warranty