I wear support tights or support pantyhose every day. I have diabetes and varicose veins, and the support makes my legs feel amazing. I knew the 4013s weren't support tights, but I heard so many good things about them, I had to try them. WOW! They are so soft and smooth, they fit me perfectly without rolling down (or having to wear something to hold them up), and the shine is amazing! I wouldn't think twice about wearing these to a tap class! (Hey, guys wore tights long before women, and they still wear them for other forms of dance, so why not tap!). If you made a support style of these shiny plus-sized tights, I'd wear them exclusively. Please consider that, Damskin--after all, people of all sizes need leg support!