Bolivian Aymara People Traditional Cap: "Chullo"

This Bolivian cap with earflaps, or "chullo" in Quechua, is typically woven or knitted from alpaca or sheep wool for its insulating quality. The Aymara People, indigenous people of the Altiplano region of Bolivia, weave intricate designs into their chullos and belts. The ear flaps protect the ears from the bitter cold wind of the Andes Mountains.

The first chullo that a child receives is traditionally knitted by his father.

The original color and design may indicate the tribe or area it is from in the Andes Mountains.

The hat has made its way into popular American culture, most likely from tourists purchasing the caps and bringing them back from vacations. 
 
Source:
http://www.alpaca4less.com/blog/the-origin-of-the-chullo-a-story-of-class-and-tradition/
http://www.myperu.org/traditional_clothing_peru.html
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