D'Addario Pro Arté Composite wound strings exclusively feature Zyex(R) multi-filament stranded core material, which delivers gut-like tone with extremely long life and consistency. The trebles come with two 3rd strings, one from the regular Pro Arte line (clear nylon) and one made from composite polymer (coffee colored) which has a brighter tone (the 1st and 2nd are also from the regular Pro Arte line).
