XT bass strings feature D’Addario’s thinnest and most durable coating yet. This nearly imperceptible coating protects every string from corrosion while maintaining the natural feel and tone of their popular NYXL series. D’Addario is the only string company who draws wire, coats it, then winds it — other companies apply the coating after the strings are made. If you’re dissatisfied with most coated bass guitar strings, give D’Addario XT bass strings an audition. You’ll be impressed.