So, for reference, where these thigh highs sit, my thighs are about 21 inches in circumference. At first, I didn't think these would fit at ALL, but they did (thankfully)
The shoe portion is snug, but definitely still okay. For reference, I wear about a 7.5 in womens
The issue is that these guys are TIGHT at top most section. Like there is no way I'd be able to wear them comfortably even though everything but the top inch or so was alright. So, I decided to stretch them out by putting them around a box a similar circumference to my thighs. I let them sit for about 3 or 4 hours, and they already fit SO much better. They also don't roll down as much (still do, but that's just something that's bound to happen when you're chunky, I was already planning on getting a garter belt)
If I wanted to, I could definitely wear them now, but I want to stretch them out just for a few more hours so I know they'll be super comfy. Good thing is that they aren't any more see through! They're still thick and seem to be able to take a beating
I just wish these were offered in a bigger size, not even for me, but for even bigger people. Besides that, I'm happy with these, especially since they're such a good price :)