These 1970s JCPenney towncraft boys size extra large swim trunks are very well used. Showing a stain on the front pocket. Features mesh lining in the front as well as a draw cord waist. The fabric is or was a stretchy nylon blend but now has lost most of its stretch and has a little bit of crunch to the flex. The fabric could be fragile in spots but once worn and broken in again they should be proper. If the fit is right should be fine but the stretchy factor is lacking at this point. There are a couple machine darning repairs along the crotch see pictures

27" waist

10.75" outseam

2.25" inseam

8" across thighs

27" hips

Could be used as men's or women's underwear.