Ribbon mics have been around since the early days of radio, and are often used for a thicker, more "vintage" sound. However, with thoroughly modern technologies and materials, sE has developed a range of mics that don't suffer from the lack of high-frequency detail plaguing most ribbons, so you can keep all the ribbon midrange magic without sacrificing your highs.
 

RNR1

From Mr. Rupert Neve: one of the world's most unique microphones.

VOODOO

Both passive and active versions, for raunchy guitars to delicate violins.

X1 R

A rugged, modern ribbon with a distinctly vintage soul.