Thank you for viewing from among many items! m(_ _)m This is a sleeveless dress from AMERICAN HOLIC. It has a button in the back. I wore it only once. The front is shorter and the back hem is longer. The length is about ankle-length on a 162cm tall person. The fabric is smooth and comfortable. It doesn't show the lines of your underwear. The armholes aren't too open, so your underwear is less likely to be visible. Please feel free to contact me if you have any questions (╹◡╹)♡