US fabric manufacturer Robert Kaufman Fabrics is one of the world leaders in apparel fabrics. Japanese Kobe Twill has been one of their bestsellers for many years. The fabric, which is classically used for trousers, skirts and jackets, is soft yet durable and the colours are exceptionally bright.
The Bone variant is creamy White.
Important note: This fabric is made from unbleached cotton. Therefore it comes with tiny black dots, a bit like sprinkled pepper. This is no flaw, but typical for unbleached substrates.