And the latest way to wear it? On your nails, of course.
It's already popping up on Instagram, with some of the platform's most-followed nail artists showing off their take on the tortoiseshell manicure. From simplistic techniques to gold flaked designs, this trend is proving to be both wearable and fun, perfect for both work and parties.
For a more minimalist approach, consider a negative-space look done with traditional nail polish instead of gels.
Treat yourself to a professional manicure or try it yourself with a series of brown, black and gold varnishes. Then, ditch with your sunnies and hooped earrings for a whole new take on the tortoiseshell trend.
This article originally appeared on Marie Claire.