I bought both of these online used and they were labeled medium. They fit larger than my mediums, but not by much. I’m *nearly* positive that they are larges. The green fits a little looser than the orange. They are not see-through to me. Great leggings, wonderful for lower back support and joint support. My Fanka leggings have been so helpful for my back problems. If you just want one pair or the other, let me know and I’ll create you a separate listing!