The Master Vacuum Bottle is made for the toughest of the tough. For those who demand the very best in durability and performance, the QuadVac™ insulation keeps hot drinks hot for 40 hours. No matter what you are doing or where you are going, this bottle is ready when you are. QuadVac™ insulation keeps drinks hot 40 hours, cold 35 hours or iced 160 hours.Read more
This Thermos is built tough without a doubt and is everything the product description says. I travel the Railroad and require products that are built to take a beating, this item delivers through heavy construction and best in class design. My coffee remains hot 24+ hours later and I could never say that about the other Thermos products I’ve owned. Beyond Satisfied!