Castore, the premium performance sportswear brand, has today been announced as the first official partner of MI London, becoming the official kit supplier of the five-time Hundred champions.
The agreement will see Castore design and supply the full performance kit range for MI London’s newly-renamed men’s and women’s teams, including match kit, training wear and travel clothing.
The much-anticipated MI London kit range will feature colours familiar to fans around the world, combined with a striking and authentic design that reflects the club’s new identity while retaining the vibrancy that has defined its success in The Hundred.
MI London are the most successful side in the Hundred, having picked up two women’s team titles in 2021 and ’22, followed by three success men’s title between 2023 and 2025.
As one of the leading global performance sportswear brands, Castore will bring its technical expertise and precision-engineered approach to MI London’s playing and training apparel, supporting athletes with kit designed for comfort, movement and elite performance throughout the season.
The partnership also builds on Castore’s continued investment in cricket. The brand is the current technical kit supplier to Surrey County Cricket Club and works with a growing number of leading cricket organisations across the professional game.
Oli Slipper, Chair of MI London, said: “I’d like to welcome Castore as the first official partner of the MI London. They’re a premium brand who provide top quality products that will support our players’ performance this summer.
“In order for our players to perform to the peak of their powers, we need to give them the best kit for match days and for training and this is what we know we will get from Castore.
“The newly assembled teams are excited to get going and put on some exciting displays for the fans at the Kia Oval this summer.”
Tom Beahon, Founder and CEO at Castore, said: “We’re proud to become the first official partner of MI London and to support the men’s and women’s teams with performance apparel for the season ahead. MI London represents one of the most exciting new identities in cricket, built on a foundation of success, ambition and global appeal.
“At Castore, our mission is to make athletes better, and this partnership gives us the opportunity to bring our technical product expertise to a team competing at the highest level of The Hundred. We look forward to unveiling the new kit and supporting MI London throughout the summer.”
The new MI London kit range will be unveiled ahead of the 2026 season.


