The Diesel Black Gold fashion show during Milan Fashion Week Fall/Winter 2017/18. Photo By Victor Virgile / Gammarapho Via Getty Images And Splash News

Andreas told Xinhua that the main look of the collection is the long silhouettes, which can reflect both the toughness and tenderness of an urban girl.

Maxi-knitted turtleneck dresses define the overall elongated silhouette. They are layered under revisited urban icons. Deconstructed sweater elements run through the collection as rib knit detachable collars, sleeves, cuffs, shrugs and gloves.

Fabrics are borrowed from a man's wardrobe. Leather and suede sneakers keep the girls grounded on the earth, while skinny belts put the focus on the waist.

"Diesel girl is strong, independent, and a little bit rebellious, which I think represent the urban girls today in every city." Melbostad said.

In the backstage, Renzo Rosso, the founder of Diesel, said Diesel Black gold collection represents the highest quality and interpretation about fashion, it can also inspire other commercial lines of Diesel.

Born in a northeastern village in Italy, Rosso made up his mind to do something different from his parents and he created Diesel in 1978. Fourteen years later, he paid the first visit to China and then introduced Diesel jeans to the Chinese market.