These teeny-tiny braids were super popular in the 2000s, and they've been resurrected by celebrities like Laura Harrier, Marsai Martin, Zoë Kravitz, and Alicia Keys. Micro braids are small, individual braids that "resemble a thick strand of hair," Jessica Houston, vice president of operations and lead aesthetician at natural beauty supply store Beautybeez, previously told POPSUGAR. The protective style can be worn down, in updos, as part of larger braids — there really are endless possibilities.