The Luxe by Martin Kovar Flexible Core strings deliver the performance and clarity serious acoustic guitarists demand. Crafted with a high-tensile core and nickel-cobalt alloy wrap, these strings produce a balanced tone with crystal-clear articulation. Engineered with a flexible core for enhanced playability, the strings have a lighter core wire that provides extra flexibility and responsiveness. The nickel-cobalt wrap features natural corrosion resistance for long-lasting tone. When you're ready to take your playing to the next level, the Luxe by Martin Kovar Flexible Core strings give you the precision and power to dig in deep.