Harlequins have announced that the club has secured a three-year deal with global sports brand Adidas.
The partnership means that Adidas will manufacture the Premiership playoff semi-finalists' home and away strips, as well as the players' training kit and Big Game 7 jersey.
Harlequins commercial director James Kendall told the club's official website: "We are really delighted to welcome Adidas to the Harlequins family.
"Adidas are a powerhouse in the world of sport and the partnership we have agreed highlights the ambition and potential of our club. We are truly aligned in our outlook and approach to Harlequins and rugby and I am excited for both our players and supporters that they will be wearing such an iconic jersey developed by such an iconic brand."
Adidas brand director Nick Craggs added: "With the Rugby World Cup next year and the club marking their 150th anniversary in 2016-17, it is set to be an exciting time for rugby in the UK and we are proud to be part of that."
The club will release replica kits for supporters shortly after the partnership officially launches at the end of July.