Okay, I have asked four people, three of whom were wearing it on their heads. But none of them what it was. It's a knit hat, like a doily, so you can see the hair underneath (though the hair isn't piled in like a hairnet, it's worn loose, with the cap hanging on like a skull cap). Beret has been a common word to describe it by the people wearing it, though I don't think that's what it is called. Best description I can do is that it's a mix of the hats Rastafarians wear to catch all their dreads in, a hairnet, and a doily. It's usually packaged in with boho chic/indie styles.