Short answer
Tweed is a woolen cloth of about 340–420 g/m², at its best in winter. Heritage woolen cloth with wind in mind; every cloth has a landscape in it.
At a glance
Choosing Tweed at your fitting
Tell the tailor your cities and your calendar — Tweed earns its place when the answer matches 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.