Some have polyester lined elastics, so be careful about how much you think you can wear. You may want a size smaller than what you normally wear. This will serve as a bra for many. The tank would look nice peeking out over the top of a buttoned blazer. The elastics on the legs are covered, available in a multitude of colors, styles and sizes.
Romans carries the long legged underwear, for Summer.
This way, you do not need leg coverings, and are still very comfortable. It has been common knowledge, a good pair of drawers will keep a lady happy. These are worn instead of Nylons. To this I say, wear socks, and wear boots. There are a ton of different styled boots and booties for us to wear.