I’ve worn mine with jeans and with nice pants. So you can dress it up or down. If you’re between sizes, the Dior boutique tailors can take the jacket in to fit you.I have questions about the iconic Bar Jacket… Is the bar jacket supposed to be worn fully buttoned up? Do you wear it casual or more dressy? I’ve always wanted one but fit always has me between sizes. I thought it would be cute w a graphic tshirt underneath? I tend to be more casual jeans gal and fancy shoes…