When sourcing wholesale, the fabric is primarily categorized by weight (GSM) and composition:

The market is led by high-capacity hubs in Asia and premium mills in Europe: Denim Fabric Wholesale | Suppliers

Untreated, unwashed denim preferred for custom aging. 2. Global Sourcing Hubs & Manufacturers

The standard for everyday jeans and casual trousers.

Premium heritage fabric with finished edges to prevent fraying.

Often includes 2% Lycra for flexibility in fitted garments.