Authentic Acoustic Flexible Core Custom Light

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. Our impeccable standards for acoustic guitar tone are embedded in our string design and precision manufacturing process. That’s why we make our own.

• PROFESSIONAL GUITAR STRINGS: Discover your guitar’s true voice. These strings 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 playability. They’re available in extra-light, custom light, light, and medium gauges.
• HIGH-QUALITY DESIGN: Made from 92/8 phosphor bronze, these acoustic strings feature top-quality bronzed-steel core wire and bronze wrap wire. They provide increased flex with huge bends and less finger fatigue, making them perfect for beginners.
• FLEXIBLE CORE: Best for rigorous practice and performance, our phosphor bronze strings are ideal for finger-style playing and note bending. If you have finger fatigue after playing or wish bending notes was easier, these lighter-gauge strings are the solution.
• VERSATILE STRINGS: String gauge is an important part of getting the best sound out of your guitar. We recommend using only our extra-light through medium-gauge strings on our guitars. Light-gauge strings have a lighter, shiny sound that gives an airy volume and are great for smaller-bodied guitars.
• THE TONE YOU DESERVE: For every handmade element we craft, we never forget why we do it: to help you set your creativity free. You’ll find a wide range of Martin strings that fit your instrument and playing style. Enjoy incredible tone, no matter what you play.