Jil Sander‘s upcoming fall/winter collection for the Japanese retailer Uniqlo - scheduled for a September release – will mark the end of their collaboration.

Initially launched for fall/winter 2009, the partnership brought the German designer’s minimal creations to the mass market for the first time.

Sander had left her own fashion house, now headed by Belgian designer Raf Simons, when it was bought by Italian luxury company Prada.

Japan’s biggest clothes retailer continues to take the lead in relief efforts following the country’s earthquake and tsunami disaster, partnering with a star-studded cast of designers for a new t-shirt collection.

Uniqlo, whose CEO Tadashi Yanai already donated $12 million of his own money and a lot more in clothes, will release a range of ten new designs June 25.

Prints will consist of drawings and scripts, crafted by the likes of Lady Gaga, Karl Lagerfeld, Gwyneth Paltrow, Nicole Kidman, Lanvin’s Alber Elbaz, Blake Lively, Charlize Theron, Cyndi Lauper, Victoria Beckham, and Orlando Bloom.