This Matenrou Opera photo contains
costume d'affaires and costume d’affaires.
There might also be
bien habillé personne, costume, costume pantalon, tailleur-pantalon, pantalon costume, pantsuit, personne bien habillé, pantalon de costume, costume, and costume de vêtements.
This video is so funny and awesome, toi can see how the boys from Opera are having fun before shooting. There's no translation of the vid,but it's worth of watching. :)