R.I. Gen. Laws § 41-5.2-12: Uniform rules — Protective equipment.

(a) Male mixed martial artists shall wear a groin protector of their own selection, of a type approved by the commissioner.

(b) Female mixed martial artists are prohibited from wearing groin protectors.

(c) Female mixed martial artists shall wear a chest protector during competition. The chest protector shall be subject to the approval of the commissioner.