Dunno about now like, 'cus I don't look
, but back in the late 60's early 70's, wimmins tights used to have the very top bit presumably made out of slightly thicker material, presumably to cope with fat arses and fartin' and stuff, dunno, but the point where the lower thinner material met the thicker stuff was quite visible when a wumman crossed her legs over whilst sitting down usually , showing off loads o' thigh like
, and us lads used to say, "
if you get past that line with yer paws, yer laffin'!!