XS is breathing new life into coated strings. With its ultra-thin
film coating on every wound string and unique polymer treatment
on the plain steels, XS offers the highest level of protection
for maximum life with an uncommonly smooth feel. XS is the most
innovative string ever created.
Born from our greatest breakthrough in string innovation,
XS Phosphor Bronze strings have the longest life of any D’Addario
acoustic guitar string. The XS coating gives our warm, balanced
phosphor bronze strings maximum life, with an uncommonly smooth
feel. Made with a NY Steel core, phosphor bronze wrap wire and
Fusion Twist technology, XS coated acoustic guitar strings have
incomparable break strength and tuning stability, in addition to
their dramatically increased lifespan. This 13-56 Medium gauge
set provides maximum volume and projection, with more tension and
resistance.