I totally agree with sfa. Your opinion matters more to her than her classmates' and their parents' opinion. How you react to anyone's negative comments--if any--might provide you with an opportunity to show her how to shrug such things off
When I was about your daughter's age, I wore nothing other than a cowboy outfit. Everywhere. My mom never made an issue of it, and I eventually grew out of it. If anyone teased me, I don't remember it.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher