By that, I mean you can take a casual outfit and swap individual separates out for more formal ones to level the whole look up
FYI, you can layer all kinds of shirts or sweaters under a dress this way
Occasion:This sparkly royal blue mini tight homecoming dress with backless styles and one shoulder neckline is suitable for homecoming, graduation, bridal shower, bachelorette party ,night out, date night, cocktail, going out, vacation, party, club, dance, birthday, and other occasions
Half sleeve lace two piece wedding dress
This one line neckline strapless dress is sexy, with a backless, high slit long evening gown that smoothly wraps around the body