Knitting for my niece

This is my first cable knitting project. I was delighted to find out just how easy cabling is, because it adds so much to a project.

I finished making this hat in one day on Saturday for my 9 year old niece, and I'm also going to make her a pair of mitts out of the same yarn to match. I am having trouble trying to figure out the measurements for a 9 year old's hands though. She's pretty tall, I'm thinking a women's small should do the trick.

I absolutely LOVE the yarn too. This hat is supposed to be for an adult (which is why I showed it on me, please excuse bad hair day), and it's supposed to be beanie-style, but I like it better as a child's hat. :)