Sportswear brand Champion and boxing and fitness brand JAB have launched a collaborative capsule collection, debuting at a pop-up experience on 11 June at SpaceUnlocked in Shoreditch.

The limited-edition apparel collection combines Champion's heritage sportswear with JAB's boxing aesthetic. The collection launches exclusively at the Shoreditch pop-up before becoming available online via JAB's Shopify store.

The Shoreditch experience transforms SpaceUnlocked into a boxing environment featuring a co-branded boxing ring, campaign installations, memorabilia displays and a pop-up bar serving electrolyte cocktails. Guests can participate in JAB-led boxing classes in the venue's basement training space.

The activation marks the first public moment for JAB's forthcoming EC1 performance club, opening autumn 2026 in Moorgate. The 20,000 sq ft destination will feature boxing studios, an open performance gym, reformer Pilates, recovery facilities, restaurant-led hospitality and wellness spaces.

The capsule collection prices range from £32-£75.