Army rotc and I am a male. I've seen many responses in the internet saying it is prohibited outside of uniform as well but I wanted to double check with you guys as well. I will ask my PMS.
Chain of command and the regs that apply to your situation should be primary sources.
May I suggest researching the official references first, and if unable to find the answer or need clarification, then consult C of C, starting with more junior levels? When a junior asks a senior (especially a CO, OIC, PMS, PNS, etc.) a question with no prior research into official resources, it's called "upward delegation," and not a good thing. The resourceful and self-reliant officer-to-be does not push work upwards. I was gently taught that as a JO, and in turn taught that to those who worked for me, usually by asking them: "When you researched this in XYZ Reg, what did you find? Show me the regs that you need help understanding. Tell me your research process, and I will coach you on that. I am sure you will arrive at the correct answer, and let's get you on the schedule to brief your class on grooming standards in civilian clothes. Good training topic, very glad you are exploring it, shows initiative, and you can include your research process. While you're at it, Google the classic gem 'The Doctrine of Completed Staff Work', run off copies for class/post to SharePoint, and I will address that in leadership lab." Upward delegation to me almost always turned into a new assignment heading downwards...
Perhaps you have done your advance legwork and are stuck, and still need clarification, in which case, you should be able to work your way up the chain.
There are plenty of references to Doctrine of Completed Staff Work. I think this one is apt for your situation.
http://armystrongstories.com/army-stories/the-chain-of-command-and-staff-work#.V5ysFVT3anM
I know you came here with a simple question. Though retired from active duty, I am still passionate about coaching juniors to excel, hence the notes above.