Sid Lee will lead the advertising, branding, retail design, experiential and interactive communications for Adidas Originals.
The brand has a retro feel and uses the famous Trefoil logo, which was originally used on all Adidas products until the company introduced a new logo in 1991.
Sid Lee has previously worked on projects for the brand including a launch campaign for the Adidas Originals Denim by Diesel collection.
As the lead creative agency, Sid Lee will develop a global platform that will be progressively implemented in Europe, America and Asia.
Hermann Deininger, chief marketing officer of Adidas Sports Style, said: "For the Adidas Originals brand, we wanted to tap into Sid Lee's progressive approach that has taken integration to a new level by seamlessly managing all possible contact points with consumers.
"Sid Lee rejects boundaries between disciplines and assembles multi-disciplinary teams to a groundbreaking extent."
The agency also created the Atelier retail concept, which was recently launched in New York and Berlin. The concept transforms the store into a canvas that allows Adidas Originals to share its brand history while at the same time showcasing product stories each season.
It is said to be inspired by the true meaning of the term atelier, which means an artist's studio or workroom -- an open space where inspiration and creativity can grow.
Sid Lee has offices in Montreal and Amsterdam and its clients include Cirque de Soleil, MGM Mirage and Red Bull.