Boy’s padded kimono
Silk, waste silk padding, wool (lining)
Several types of shibori, brush dyeing with sumi ink

The patterns and colors of this kimono indicate that it was probably originally a man’s juban (underkimono) retailored for a little boy.

It looks as though all the diagonals are the same width and at the same angle. This would make it easier to match designs across the seams if the tailor so desired. Some matching of seams can be seen here, heightening the effect of the diagonal designs.