This is apparently a "Peruvian Wool Fleece Cap" patterned after the traditional Chullo. Im pretty certain it isn't wool, so lets just say that it is fleece. The cap is topped by six triangular sections, much like most fabric hats, but is edged with an asymmetrical band that includes the "ear-flaps". A cord-locked drawstring is sewn in to assist with retention, and to keep the flaps tucked up to your chin in especially chilly conditions.
I tend to roll the ear flaps up and cinch the drawstring in a little, because I like to hear my surroundings more clearly,
However, when up at the snow, or in just a bitter wind, I am only too happy to protect me delicate flesh and roll them down.
The snug fit lends itself to sitting under a hood, such as in my Harry 1.2 jacket, or even under a helmet, such as my Ops-Core knockoff bump helmet.
Thankfully there have been few days this season where I've felt like I've needed this cap, but I am vey glad to have it, packed and ready, for when I did. A great camping and wilderness survival addition.
I'm thinking of doing Halloween as Angry Finland...
Side note, my mother had kept my ear-flap cap, I passed it on to Tactical Baby ... RLTW!