WINNETKA, Ill. (CBS) — As the school year gets underway, New Trier High School in Winnetka is making sure parents know it matters what their children are wearing to class.

As WBBM Newsradio’s Bernie Tafoya reports, the administration at New Trier says although the school wants the students to develop their own style of dress, some of them are going overboard, and are making it uncomfortable for others.

LISTEN: WBBM Newsradio’s Bernie Tafoya reports

“Some of the low jeans, short skirts, short shorts, crop tops, strapless or backless shirts, see-through tights, and revealing tank tops that our students wear are inappropriate for an educational setting,” New Trier principal Timothy Dohrer said in a letter to parents. “Visible underwear and unsuitable messages on t-shirts are also unacceptable.”

Students who ignore the dress code could have their parents called, be asked to put on a sweatshirt or sweatpants, or be sent home to change, the letter said.

New Trier administrators say students should understand that how they look has an effect on how they behave, and how they are perceived.