Helsa's silk charmeuse shirt comes in green, the fluid, lustrous fabric giving a button-up an elegant, evening-ready sheen. Soft and refined.

Courrèges' pinstriped trousers come in gray and off-white, the French house's clean, Space-Age-leaning tailoring on show. Sharp and modern.

Isabel Marant's slingback comes in black with a pointed toe, the French label's effortless-cool eye on a versatile heel. Easy elegance.