Headbands are having one of those fashion moments where the item itself is not new—the styling around it is. The 2026 version is less prep-school costume, more small finishing touch: a wide jersey band with a leather jacket, velvet with tailoring, tortoiseshell with a knit dress.
The difference between chic and too much is restraint. Let the headband repeat a color or texture already present in the outfit, then keep the jewelry and other hair accessories quiet.