Thermos 16 Ounce Vacuum Insulated Stainless Steel Briefcase Bottle, Black Thermos vacuum insulation technology for maximum temperature retention, keeps liquids hot for 12 hours or cold for 24 hours Sleek modern design, Durable stainless steel interior and exterior Compact and lightweight for easy portability; 16 ounce capacity Twist and pour stopper Dishwasher safe