portaient des

were wearing

→ porter
phrase Common #4,680
were wearing Imperfect plural form of porter. Can also mean “were carrying” depending on context.
FR: Les enfants portaient des manteaux bleus.
EN: The children were wearing blue coats.

Ils portaient des masques.

They wore masks.

Les voleurs portaient des gants.

The thieves wore gloves.

Tom et Marie portaient des bonnets de Père Noël.

Tom and Marie wore Santa hats.

Pour éviter toute confusion, les équipes portaient des couleurs différentes.

To avoid confusion, the teams wore different colors.

Les deux motards portaient des casques.

Both motorcyclists were wearing helmets.

Beaucoup de gens dans la foule portaient des masques.

Many people in the crowd were wearing masks.

Elles portaient des habits rouges.

They were wearing red clothes.

— Memories of Murder (2003)

Les soldats portaient des casques en acier.

The soldiers wore steel helmets.