Not too tight tights?

[AnnaFiveTowns]

I'm searching for some tights that are very soft and stretchy around the crotch and stomach area. I suffer with cystitis so they can't be too tight - which sounds odd, I know, as they're tights - but I find that some a wearable and some are very uncomfortable. I do tend to size up which helps a bit. It's frustrating as I have so many lovely things to wear but they all need tights!

[CeeceeBloomingdale]

What about maternity tights, they'll be looser at the top without being Nora Battys