Five pieces Prep School Girl Costume Set number five icon symbol on a concrete wall. Vector illustration Stock number five icon sign. Set of coloured buttons. Vector illustration Candle Number Five Vector Illustration Stock Illustration Download. You'll be the class favorite in this Flirty Prep School Girl costume featuring a crop top with short sleeves, a front tie closure, a high waisted plaid skirt with a black lace trim, a black necktie, black wrist cuffs with red button accents, and red hair bows. (Glasses and thigh high stockings not included.)