URBAN RESEARCH DOORS Mongolian Wool Rib Knit Pullover While I don't think there are any stains, there are some pills in places. Thank you for your understanding. No pets, no smokers. We have prepared a knit using carefully selected wool yarn from sheep raised in the extremely cold region of Mongolia. Compared to regular wool, the yarn is finer and curls, containing more air inside the yarn, resulting in a fluffy and supple texture that provides excellent heat retention and a light feel. The loose silhouette with dropped shoulders and voluminous sleeves creates a relaxed look, and the slightly shorter length makes it easy to balance and wear with a neat impression. We recommend coordinating with a cut-and-sew or shirt as an inner layer, or layering it over a dress.