@JohnM I am glad the W34 worked out for you as it did! Really a good and comfy looking fit.
On another note, the SugarCane Okinawa is said to be dyed with a small amount of Ryukyu natural indigo (never found out how much, probably jst 1% or so ).
Anyway, it might be this indigo from this blog entry:
https://amakuma.ryukyu/en/ai-en/