Olympus Thin Weight Sashiko Thread. 100% Cotton. If you've been wanting to try the Olympus thin weight sashiko thread but can't decide which color, now you can have them all. Olympus now has a sampler pack with 20 - 11 yard (10m) mini skeins. One skein of each color. This thread is suitable for big stitch quilting, boro patchwork, embroidery work, and sashiko stitching where you have smaller stitches and finer stitch designs. Thin weight sashiko thread is perfect for Sashiko Hitome-zashi and Sashiko Stitching-Weaving. High quality cotton sashiko embroidery thread made in Japan.