I got 14-16 and I’m that in sizing and it was hard to get on, but really comfy on. I have big thighs and it didn’t dig in at all … but I gave it to my daughter and she loves it because I wanted it a bit easier to get into and wear in this qld heat. So I’d suggest sizing up. I sized up in the thick strap full bodysuit and it’s much easier to get into but still firm. The material is very breathable though.