Unlined,  wide crotch briefs in pretty, bubblegum pink PVC. Satin / sheeny finish, matt inside. 0.18mm thick.  Midway between crisp and supple.  Unlined.  Wide crotch.  Elasticated waist and legs (uncovered elastic) Unisex.   The side seams are sewn. 
Made in our UK workshop.
Please go by following measurements to check fit:
Waist - (top of band) fully stretched - 46" (117cm)
Sides 2" (5cm)
Crotch width 5" (12cm)
Leg opening full stretch 28" (71cm)