Yak wool has long been an essential material for making yurts and clothing in Tibetan ethnic areas. During the down season, a yak produces an average of up to 300 grams of down. After cleaning and post-processing, the output of yak wool is significantly reduced. Thus, the yak wool is of top quality and has high economic and cultural value.

Apart from the precious raw material, the craftsmanship of processing yak wool is also worth noting.

"We have revolutionized and integrated textile techniques (when it comes to yak wool)," Guo explains. "The Inner Mongolia autonomous region is home to the best cashmere, while the Xizang autonomous region boasts the best crafts from cashmere processing. To make the scratchy yak wool skin-friendly, we integrated our traditional craftsmanship of Inner Mongolian handmade felting and the hand-woven Tibetan pulu (a kind of woolen fabric) in processing the yak wool."