Martin Authentic Flexible Core Phosphor Bronze Acoustic Guitar Strings

Martin Authentic Acoustic Flexible Core strings are built for players who want comfort without giving up tone. A lighter gauge Superior Performance core wire paired with a heavier phosphor bronze wrap wire gives a softer playing feel while still delivering a full, rich and balanced tone.

The added flexibility suits expressive playing styles, including wide bends and fast runs, with reduced finger fatigue over long sessions. Built to Martin's in-house engineering standards, this set is ideal for players who want a dynamic, consistent response whether they're strumming or fingerpicking.

Features

• Flexible core design reduces finger fatigue and enhances playability.
• Full, balanced tone with excellent projection and clarity.
• Superior Performance core wire adds long-lasting durability.
• Ideal for expressive playing styles including wide bends and fast runs.
• Precision-engineered in-house by Martin for consistent tone quality.

Specs

• Core: Lighter gauge Superior Performance wire
• Wrap: Heavier gauge phosphor bronze
• Tone: Rich, balanced, dynamic
• Gauge options: Light, custom light, medium
• Manufacturer: Martin