Short answer
Herringbone is a fancy twill cloth of about 280–340 g/m², at its best in autumn / winter. The broken diagonal that brings pattern without noise — texture you can read across a room.
At a glance
Choosing Herringbone at your fitting
Tell the tailor your cities and your calendar — Herringbone earns its place when the answer matches autumn / winter wear. The shortlist you receive will pair it with one or two alternatives, and the choice is always yours.
Cloth notes are guidance, not inventory: availability varies by season. What is reserved for you is confirmed in your written quotation.