Vintage black maxi half slip skirt Y2K side slit lace sz S/M

Vintage black maxi half slip skirt with a thin lace border and a side slit. Three tiny pin holes at waistband otherwise in very good used condition. Vintage sizing likely a small/medium, check measurements. Measurements laying flat . . . Waist without stretching 11" Waist stretches to 17" Slit 18" Hip 21"