Martin® Authentic Acoustic® Flexible Core strings are designed to reduce finger fatigue and allow huge bends. They feature a lighter gauge version of our Superior Performance core wire combined with heavier wrap wire to deliver a full and balanced tone with increased flex and playability. Martin's impeccable standards for acoustic guitar tone are embedded in their string design and precision manufacturing process. special feel and flex fr players who know how to use it.
Choose Gauge Above: Light are .12-.54, Custom Light are .11 - .52