I trace the current craze partly to the Saint Laurent women’s show last September, which featured a plethora of suits and ties inspired by Yves Saint Laurent’s own style in the 1980s.

FW25's top accessory: ties & neck scarves. Explore the comeback of ties as a symbol of empowerment and the enduring ...

But the trend reached its apex last September when Saint Laurent opened with a salvo of power suits and ties. Now it has reached critical mass: Emporio Armani and Andreas Kronthaler’s Vivienne ...

Last season he was inspired by the personal style of the label's founder, Yves Saint Laurent himself, and many of the stars arrived in the oversized suits and ties crafted in his honour.