Short answer
Choose cloth for the places and seasons where you expect to wear these shirts. Ask the tailor about fibre, weight, weave and care for the specific options; a city's name alone does not determine the right cloth.
Two-fold poplins for the boardroom, oxford and royal oxford for texture, linen blends for the Riviera weeks — collars engineered to stand or roll by choice.
November to March plans lighter wools and open weaves that travel between climates.
The full cloth books span fresh open weaves through four-season high-twist to winter flannels and cashmere blends. Bring the tailor your calendar; the shortlist comes back two or three cloths wide.
The itinerary is a proposal: months are planned, dates and venues confirmed individually. Final quotations are confirmed in writing before you commit.