A model strikes a masculine look wearing a pinstriped trouser suit by Yves Saint Laurent. His plainer suit for evening wear known as 'Le Smoking' became his signature piece. (Photo by Reg Lancaster/Getty Images)
A model strikes a masculine look wearing a pinstriped trouser suit by Yves Saint Laurent. His plainer suit for evening wear known as 'Le Smoking' became his signature piece. (Photo by Reg Lancaster/Getty Images)