Handmade undergarments made of leather or lace, not handkerchiefs.
The material is semi stretch satin of polyester.
Sewed hem with elastic and lace.

All lace cloth, but the lining is cotton lawn.
No elastic in the hem.

Thong of black leather. Maybe washable. (I won't try on.)

Close up.
Extra picture, Black leather corset.
Front lace. Small but sober.
If you want to make, go to how to make lace pants.

Reference Thongs from ties / Lace thong / How to make men's bikini