garter belt 
noun North American
A suspender belt.Beside this, an armchair was covered in a wild outgrowth of clothes: summer dresses; stockings; suspenders; a garter belt; an ornate white basque that she had worn for him one night....
- The dress lay open in the back to reveal a black lace bra, panties and the garter belt that lay against her hips.
- A warmly welcomed returning veteran is the garter belt.