AG was launched in 2000 when denim designer pioneer Adriano Goldschmied teamed up with Yul Ku, the owner of Koos manufacturing. The company is mainly known as a premium denim brand. In 2008, the brand evolved from denim to a contemporary lifestyle brand when Samuel Ku, son of Yul Ku, took over as the brand's Creative Director.
In 2004, Adriano Goldschmied left the company and the Koos family bought out his share of the trademark. Over the years, AG has gained the likes of celebrities including Mark Ruffalo, Emma Roberts and Ben Mackenze.