Thermos Ultimate Insulated Flask

Thermos is the pioneer of vacuum flask technology, originating from a German innovation in 1904. The brand became so synonymous with the product that 'thermos' entered the English language as a generic term, though the 'Genuine Thermos Brand' remains a distinct trademarked entity.

Today, the brand is owned by the Japanese company Taiyo Nippon Sanso Corporation. While the brand has global roots in Germany, the UK, and the US, most modern production for the international market takes place in specialized manufacturing facilities in China and other Asian territories to maintain global supply chains.