比利時帽

Wore this on a blustery morning walk and my ears stayed perfectly warm the whole time. It's thin enough to slip under my bike helmet without bunching up, which is exactly what I needed for winter commutes.

The wool blend actually blocks the wind, which I didn't expect from something this thin. Wore it under my bike helmet all last week and my ears stayed warm the whole commute.

Wore it on a windy ferry crossing and my ears never went numb once. It's thin enough to tuck under a hood without bunching up. Good weight for fall, though I'd want something thicker for real winter.