chullo

thumb|upright|Alpaca chullo

A chullo (, from ; known as ''lluch'u'' in Aymara) is an Andean style of hat with earflaps, made from vicuña, alpaca, llama or sheep's wool. Alpaca fleece has wool-like qualities that help to insulate chullo-wearers from the harsh conditions in the Andean mountain region. Chullos often have ear-flaps that can be tied under the chin, to further warm the wearer's head.