Judy, I also used to wear those in the early 1960's, under almost anything if I remember rightly. When washed, we had to rinse them with sugar water to make them stiff again, although they never went very stiff at all. I don't remember if the wasps used to be out in force during the summer! I had a bright pink one, but I used to have to wear a straight waist slip underneath as it used to scratch my legs. I remember wearing a bright pink petticoat under a black and white glazed cotton skirt I made - gorgeous I thought it was, black and grey cherries on a white background - I am sure the pink must have shone through, but no-one ever mentioned it if it did.