We use sweet twist compact thread of original thread for warp yarn, saffill run linen which is French linen for weft yarn.
It is a beautiful vintage denim that put out a vertical ridge unique to a shuttle loom.

Yoko yarn linen striking at heavy ounce Selvit is unusual and can differentiate.
Ear thread is a classic red color.

Expansion of indigo (44th color), black (2nd color), under P (1st color)