: Offers a vast range of suiting fabrics including wool, silk, and cotton blends.

For those who prefer to feel the "hand" of the fabric before buying: : Savile Row area and Berwick Street.

These suppliers are the gold standard for bespoke tailoring, often carrying prestigious brands like Holland & Sherry, Dormeuil, and Scabal.

: A San Francisco staple with an extensive online inventory of designer suiting.