Hey, I had an idea AFTER I wore my sheer ivory organza gown with a full length slip with the straps peeking out occasionally to my black-tie event…. I should have bought and worn 2 slips at the same time – the strapless one and then another one UNDER it worn at the waist. That way they overlap (If the bottom seam of the strapless one was thin – it wouldn’t have shown a line). I hate hindsight!!!!!!!!! I hope this helps you in case none of your slips work.