I bought 4 pairs of the extra plus leggings. They are extremely comfortable and soft. I will say, it seems they are a bit small. I typically wear 3x depending on what it is, so I bought the extra plus to be safe. They fit very well on me, but I don't think they would fit someone much bigger. If you're leaning towards the 5x size, it might depend on your proportions. My underwear also doesn't show through but for a big girl, I have no butt. They might be a little see-through if you have junk in the trunk.