suspender belt
US /səˈspen.dər ˌbelt/
UK /səˈspen.dər ˌbelt/

1.
guêpière, reggicalze
a belt with suspenders attached, worn by women to hold up stockings
:
•
She wore a delicate lace suspender belt under her dress.
Indossava una delicata guêpière di pizzo sotto il vestito.
•
A suspender belt is designed to keep stockings from slipping down.
Una guêpière è progettata per impedire alle calze di scivolare via.