Staple fiber may be varied in length, denier and other respects to render it spinnable on the several established systems for the natural fibers cotton, wool and flax.
It is composed of the XD-I vibroscope based on the string vibration and the XQ-I fibre tensile tester with pneumatic clamp operating and data processing function.
And you're going to need to grind it to a particular fineness, and actually even with the same pigment the milling and the grinding will affect the color you have.
And flannel shirts today can come in various weights and degrees of fineness so you've got a multitude of options when incorporating them into your outfits.