H&M has announced a collaboration with Diesel’s Creative Director Glenn Martens for its Fall 2025 collection. This year marks the 20th anniversary of H&M’s designer collaboration series, which began in 2004 with former Chanel Creative Director Karl Lagerfeld. Belgian designer Glenn Martens, who stepped down as Creative Director of Y/Project in September after over a decade, is known for his signature patchwork and asymmetrical cuts. H&M stated that this partnership with Martens aims to bring his avant-garde design style to a broader consumer audience.