What stay ups are recommended for someone who is petitie...5'2'? Sheer that feel great and stay up and look awesome and are comfortable for her.....what is better 15 or 20 denier ..... sheer with a sheer toe. Recommendations???? She has a hard time finding something that is not to long.......see, she looks gorgeous....just need to find the right brand.......and something that will stay up.......Learning....