Celebs like Chris Brown love to indulge in a little luxury from time to time — but that doesn’t mean they don’t like to give back too. And ultra-pricey urban sportswear line billWillie lets them do both. The company was founded by a successful media mogul who chooses keep his identity a secret and includes ultra-luxe reversible hoodies detailed with 14K gold-dipped thread, zipper teeth, and pulls. Each jacket will set you back $1400 to $2100 — but every dollar of profit goes directly the billWillie’s Youth Ambassador Program, which offers grants to 11 ambitious 14- to 18-year olds with winning proposals to change their communities for the better. Kids with designs on improving the world can apply for a billWillie ambassadorship between now and February 29. Other fans of the line include Will Smith, Will.I.Am, Fergie and Kanye West. And if you happen to have a couple grand burning a hole in your pocket and a spot in your closet begging for a new sweatshirt, you too can prove that fashion doesn’t have to be frivolous.