D Addario Flamenco sets are constructed using a new variation of our exclusive multifilament stranded core material, which dramatically improves the life and tuning consistency of the wound strings when compared to traditional nylon cores.  These sets were created and tested with artists worldwide to deliver a flexible feel while still maintaining a quick attack response that is essential for flamenco players.  These sets are available in your choice of black and clear nylon, providing tone and appearance options for both traditional and progressive players.