Large in the calf
I like these boots a lot, and have still been wearing them, but they are definitely big in the leg. This may be in part because I wear a large size, but be aware that unless your calves are on the bigger size (I consider mine pretty average), you will have some looseness. This is fine with skinny jeans, but I don't think these would look cute on me with skirts. They are just a bit bulky for that, both in the foot and in the calf. Additionally, be aware that they bend about as well as you would think for Crocs material - mine make a little noise when I walk in them. Again, none of this is enough to stop me wearing them regularly, BUT they weren't quite as universally great as I was expecting.