Diesel Black Gold is hell-bent for leather and raised on rock 'n' roll. That puts it at a distance from much of the properly suited, decorous collections that have largely made up Milan's offering this week, but it had the courage of its convictions. Renzo Rosso's higher-end label showed the usual lot of skin, from oily perfecto jackets to leather pants to the suede-sleeved raglan sweatshirt knit. Tailoring was on the edgier end, with skinny shawl lapels and Carnaby Street stripes. There was one vintage-esque three-piece on display worn with—was that one of Milan's many turtlenecks? Ah, no: just the model's full neck tattoo.