Short answer
Cavalry twill is a heavy twill cloth of about 340–400 g/m², at its best in winter. A bold, double-milled diagonal built for hard wear; the country weekend in cloth form.
At a glance
Choosing Cavalry twill at your fitting
Tell the tailor your cities and your calendar — Cavalry twill 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.