UK performance sportswear brand Castore has strengthened its association with Formula 1 motor racing, unveiled a “landmark new partnership” with American-owned TGR Haas F1 Team.

Beginning in 2026, the multi-year agreement will see Castore become the Official Kit Partner and Official Retail Partner of the TGR Haas F1 brand and team.

Castore will design and supply all on- and off-track performance apparel for the team, including advanced technical kit for drivers, engineers, and team personnel. Alongside this, Castore will produce replica teamwear and a series of dedicated fanwear collections, bringing premium, performance-driven garments inspired by the team’s identity to supporters worldwide.

The partnership builds on Castore’s rapidly expanding Formula 1 portfolio which includes agreements with BWT Alpine Team, Oracle Red Bull Racing, McLaren Automotive F1, as well its connection with MotoGP motorbike racing team Repsol Honda, “further cementing the brand’s position as a leading technical apparel partner across the elite level of motorsport”.

Castore co-founder Tom Beahon said: “Our partnership continues the exciting momentum we’ve built in Formula One. [The team] represents another world-class organisation that shares our commitment to innovation and high performance.”