Also Kanoko shibori.
It is a dyed fabric with a dapple pattern using a shibori technique. The white dappled pattern looks like a spotted fawn (sikanoko). That’s why it’s called kanoko shibori. The spotted pattern is created by tying off very small round pinches of cloth with thread before dyeing. This elaborate dyeing method became popular in the Edo period.
Although the kanoko pattern can be often seen on yukata, in most cases, the kanoko patterns are just printed on the fabric.