Harlequins FC, the Premiership Rugby club, have developed a five-year partnership extension with Castore, the premium British performance sportswear brand.
Since their partnership in 2022, Harlequins and Castore have developed a strong and productive partnership centred on performance, innovation, and quality – both on and off the pitch.
Castore will continue to be Harlequins’ official technical and retail partner until 2030, delivering all playing, training, and travel apparel for the men’s, women’s and youth teams, as well as handling retail operations at The Stoop and online.
The cooperation has grown year after year, with the club and Castore collaborating more closely on the design of unique match kits and a broader retail range that honours Harlequins’ tradition and identity.
Highlights have included enhanced club involvement in the creation of iconic kits, the reintroduction of the very popular throwback shirt, the establishment of a Harlequins golf range, and the debut of a member discount scheme for supporters this season.
On the performance front, Castore and Harlequins players worked together to test new high-performance materials and fits, guaranteeing that each new line incorporates the most recent developments in sportswear technology.
The continuing expansion of Harlequins’ retail business since the partnership’s inception demonstrates the strength of the relationship, which continues to drive interaction with the club’s global supporter base.
Harlequins Chief Executive, Laurie Dalrymple, said, “We’re pleased to be extending our long-term partnership with Castore. This renewal is a testament to the strength of our relationship and the success we’ve achieved together to produce several iconic Harlequins kits and provide a vast range of quality retail products to our supporters. Our brand is colourful and unique and in Castore we have a technical partner who are willing to push boundaries, leaving no level of detail or intricacy unexplored. We look forward to continuing to develop our partnership and delivering outstanding products for our players and supporters in the years ahead.”
Tom Beahon, Co-Founder of Castore, said, “Harlequins is a club with a proud history and a unique place in English rugby, and we are delighted to be extending our partnership for another five years. This deal strengthens our relationship with one of the Gallagher PREM’s most iconic clubs and underscores our long-term commitment to rugby at all levels.”





