A black prep isn't any different than any other "american individual" who dresses in the fashion of Preppy Americana Style. I.E (Ralph Lauren, Brooks Brothers, Martha's Vineyard Clothing, etc) A Black Prep, is just a minority of the American population who dresses in said above fashion, normally in the south, more pastel or bright colors are to be worn, as a male black prep and a southerner, I prefer the above clothing paired with a college fitted baseball cap, or quoddy mocs with no socks.
They don't always have to come from money. But, to afford most of these clothing a steady income form the parents or self is stressed. Also, Prep is more of a upbringing and a combo of some form of monetary gain. Needless to say, you don't have to own thousands of cars/vacation at the "right" spots to be preppy. Preppy is a fashion statement as well as a way of life, but the latter in my opinion is more about "class" how you carry yourself (good moral/social conduct),good finances(no debts/well credit/generous account)manners(important in the South),college degrees or higher education/FULL employment(mostly white collar jobs (but this varies) depending if the earnings are above national average.Modesty is key, never brag about your upbringing.
Girl 1: "Jasmine is cute, oh, she's a black prep, doe's she vacation at Martha's Vineyard like the other kids from "Our Kind of People" the book by Lawrence Otis Graham? LOL
Girl 2: "That's not true, her father works for the Pentagon and her mother is a school teacher. They're not even Jack and Jill, though, they are respected in their community, live in a posh neighborhood and work for every dime, think they are the American dream like most of the U.S in those regards."