If you are a person that wears glasses or uses their smartphone all the time, then keeping them clean is a priority. And tissues or a normal cloth to wipe glasses and smartphones could cause scratches. However, not everyone brings along a microfiber cloth in their bag, especially in their pocket, at all times.
So the designer of this tie thought of a way to make ties focus on functions rather than just fashion. The tie has a special microfiber cloth hidden behind the tip to allow the wearer to wipe their glasses and smartphone from smudges, sweat, and dust.