The Unbreakable Vacuum Bottle is designed for the pro’s pro, the toughest of the tough and those who demand the very best, Stanley’s Master Series offers unrivalled durability and thermal retention. A century of know-how meets state-of-the-art in every detail.
Its QuadVac technology adds a double layer barrier to double wall vacuum insulation. The four layers add protection from convective, conductive and radiant energy transfer. QuadVac™ insulation locks in heat or cold better than any other technology out there, maintaining temperature for 27 hours.