Get this look!
Not sure what to wear underneath your trench? Try a black or white turtleneck. "If you're concerned about your neck, gone are those lines," he says.
Basic black trousers are a slimming way to show off your shape. "If you're petite, [get] more of a tapered leg, slightly tapered," he says. "If you've got hips, [get a] fuller leg. It will balance out the hips."