Quilted bags. Left: key-fret pattern. Right: tortoise shell, key-fret and interlocking circles.
Sashiko is the technique of stitching layers of thin cotton for warmth and strengthening. Sashiko stitchery was first done partly on kimono for repair and reinforcing but eventually acquired a decorative role. These bags were used for carrying money and different utencils. Dense stitching was applyed to reinforce the bottom to withstand weight and hard use.