suspender
US /səˈspen.dɚ/
UK /səˈspen.dɚ/

1.
bretelles
a pair of straps that pass over the shoulders and are fastened to the top of trousers or a skirt to hold them up
:
•
He wore a suit with classic suspenders.
Il portait un costume avec des bretelles classiques.
•
The clown's oversized trousers were held up by bright red suspenders.
Le pantalon trop grand du clown était maintenu par des bretelles rouge vif.
2.
jarretelle
(in the UK) a strap, usually elasticated, worn to hold up a stocking or sock
:
•
She wore a garter belt with delicate lace suspenders.
Elle portait un porte-jarretelles avec de délicates jarretelles en dentelle.
•
The old-fashioned stockings were held up by suspenders.
Les bas à l'ancienne étaient maintenus par des jarretelles.