Haider Ackermann’s recent debut for Tom Ford showcased a grey herringbone blazer with the lapels confidently popped over a pair of black leather trousers, and the look was both easy and edgy.

She stepped out in New York wearing a pair of Gucci pleated jeans, paired with a fitted blue herringbone blazer layered over a plain white t-shirt. This laid-back look is finished with silver hoop ...