Global - On top of Iris's current remit of handling Adidas retail campaigns, the agency will now be assuming the lead creative role on the sportswear company's running work worldwide, extending the global relationship.
Iris has been tasked to manage strategy, advertising, retail and experiential communications activities.
"Adidas is currently the fastest-growing running brand in the world. We believe that great brands and products deserve great communications solutions, so it is a very exciting time for us to be extending our working relationship," Iris's client services director Simon Humphries said.
The creative work on the 2009 campaign will be led out of its London offices by CDs Shaun McIlrath and Grant Hunter.
Adidas's sports performance business remains with 180 Amsterdam.