Mine was slightly wavy until puberty, then it got really curly. I fought the curls until college, then I set them free! (funny how a busy "grown-up" schedule of class, work and studying lessened my desire to spend time straightening my hair. )

I do love my hair now. The last time I got it flat-ironed, just for the heck of it about four years ago, I did NOT like it.
shoulder-length 3a/b, depending on weather and products (or lack of products!)