Stanley Toughest of the Tough Flasks - Stanley Master Series 750ml Flask

Iconic American Brand with a Lifetime Guarantee

Our Opinion:-

Stanley is the Iconic American Brand. Manufacturing All-steel Vacuum Flasks since 1913. The design remains largely unchanged, with their utilitarian hammered enamel finish. BUT why change when these Flasks & Insulated Mugs do exactly as they say, keeping drinks Hot or Cold for longer than many other brands. and being virtually indestructible. They even come with a Lifetime Warranty.

Manufacturer says:-

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.