Japanese Kimono Scarf S5974 - Richly Colored Silk Tsumugi with Abstract Patches Silk tsumugi is a crisp, flat weave silk so I prewashed this fabric to soften it. This is a dry, cottony fabric, not a slinky type of silk, and it is woven with shorter silk threads. Has been dyed with a resist method called kasuri to create beautiful subtle color changes Measures 70" x 6.75" wide.