I like to hold a modicum of modesty when I wear skirts or dresses, but hate wearing underwear under them as I know that a good gust of wind will lift them up and flash everyone. I also am terrible about crossing my ankles when I sit. I tend to cross my legs whether I'm aware of it or not; it's just how I get comfortable. These are great as I can wear them under skirts or dresses and not worry about flashing everyone. Now, they are a little long, so if you're going to wear them under short skirts, you may want to roll or bunch them up. I tend to wear skirts that go just above my knees and these don't show under them, but if my skirts were any shorter, they probably would. You can also just wear them out and about. I wear them around the house. To my knowledge, they're not see through, but I haven't worn them in the sun or anything, so I imagine they might be ever so slightly see-through. I also ordered these a size up so that I was more comfortable. I didn't get these to hold any tummy in or anything as I don't have a tummy, but these are so nice to have around that I ordered more.