D'Addario XT Single Strings

They exist!  This is the comprehensive range of D'Addario XT coated (treated), long-life single strings for electric and acoustic guitar! XT is the combination of a microscopically thin, hydrophobic treatment on all strings, NY steel cores and ‘plain’ strings and fusion twist ball-ends. Essentially D’Addario most advanced materials and string treatments which means these strings last ages!