"Preppy style" refers to a fashion trend that is characterized by classic, clean, and elegant clothing choices, often associated with high-end and traditional brands. Full definition
In the last couple years thanks to Pinterest, it seems like this sort of preppy style is more popular than ever. (collegefashion.net)
I've been in love with preppy style for as long as I can remember but these days when I do preppy — I need it to be bold, funky, and feminine all at once. (charmedvalerie.com)