Acrylic Wool Tsumugi Acrylic wool tsumugi fabric is a plain weave fabric that uses acrylic yarn for the warp and wool yarn for the weft, resembling tsumugi. Wool material excels in heat retention and moisture retention, and has long been favored as a haori material for Japanese inns. Free Size ※The color may differ from the actual product due to photography taken with a mobile phone.