If you love the long life perks of coated strings but don't like the feel then D'Addario's XT strings could be exactly what you're looking for! Combining high carbon steel cores with and advanced corrosion resistance treatment, these strings give a longer life whilst maintaining the sound a feel of a normal string. Available for Electric, Phosphor Bronze Acoustic, 80/20 Acoustic, High and Normal tension Classical Guitar, 4 and 5 string Bass, Mandolin and Banjo.