1. By Supply Chain and Production
These are the operational pillars that move a garment from a raw concept to a customer’s closet.
Textile Design and Production: The foundation of fashion. This sector handles sourcing raw fibers (cotton, silk, polyester), spinning yarn, weaving, dyeing, and finishing fabrics. It also includes the production of trims like buttons and zippers.
Design and Manufacturing: The sector that turns textiles into actual garments. This involves trend forecasting, sketching, pattern-making, cutting, and sewing. It ranges from small, in-house artisan workshops to massive overseas contract factories.
Retailing and Merchandising: The business of buying clothes from manufacturers and selling them to consumers. This includes department stores, independent boutiques, direct-to-consumer (D2C) e-commerce brands, and the buyers who curate their inventory.
Fashion Media, PR, and Marketing: The promotional engine of the industry. This includes fashion journalism, magazines, trend forecasting agencies, modeling agencies, and the production of fashion week events.
2. By Market Segment
This is how the industry categorizes the final product based on price point, exclusivity, and production volume.
Haute Couture (High Fashion): The pinnacle of fashion. These are custom-made, bespoke garments constructed entirely by hand for individual clients. It is a highly exclusive sector governed by strict rules (especially in Paris) and serves a tiny, ultra-wealthy demographic.
Luxury / Designer Ready-to-Wear (Prêt-à-Porter): Premium clothing produced in standardized sizes rather than custom-tailored. While mass-produced, it uses high-quality materials and relies heavily on brand prestige (e.g., Chanel, Prada, Louis Vuitton).
Bridge Brands (Masstige): The “affordable luxury” tier. These brands bridge the gap between high-end designer labels and the mass market, offering better quality than fast fashion but at a more accessible price point than true luxury (e.g., Coach, Tory Burch).
Mass Market & Fast Fashion: The largest and most profitable sector. This involves producing large quantities of clothing at low costs, often rapidly copying runway trends to get them into retail stores as quickly as possible (e.g., Zara, H&M, Shein).
Specialty and Niche Apparel: Sub-sectors focused on specific uses, such as activewear/athleisure, bridalwear, footwear, lingerie, and the rapidly growing sustainable/eco-fashion sector.