Wear Norma Kamali’s fitted waistcoat (£195, My Theresa) with a thin merino wool crew-neck and tailored trousers for the office, then couple it with a camisole and kitten heels and, voilà, head ...

Style Notes: A wool coat and black trousers pairing is what I live ... Lydia's elegant look incorporates seasonal trends—waistcoats and leather trousers—while retaining a timeless feel.

White smoke-toned waistcoat in A-line silhouette featuring ... Double-breasted sleeveless jacket in black & burgundy wool ...