The 5 Key Pieces Every Woman Should Own According to Sophia Amoruso, Founder, Nasty Gal

Amoruso in a typically adorable ensemble.

It's been four years since Sophia Amoruso launched the wildly popular online boutique, based on her signature with-the-band look that's now—everywhere! “Our customer will wear a little '60s Alexa Chung minidress one minute, and then funky cutoff shorts with big-ass platforms the next,” she says. “The look is sexy, but not in-your-face.”

Click through for her 5 must-have fashion essentials!