The Polyester Air Bag Yarn segmentation by application distinguishes three primary end‑use categories that together shape the market’s revenue profile. Automotive dominates, accounting for roughly 70 % of total sales, as polyester yarn is the preferred filament for passenger‑vehicle airbags due to its consistent tensile strength, heat resistance, and compliance with safety regulations. Industrial applications, representing about 20 % of the market, include inflatable safety barriers, fire‑suppression systems, and heavy‑duty cushioning where durability and cost efficiency are paramount. The remaining 10 % stems from consumer segments such as sports equipment (e.g., inflatable helmets, protective gear) and recreational inflatables, where lighter yarn grades meet performance‑to‑price expectations. Each application tier contributes proportionally to the overall market size, with automotive driving volume growth while industrial and consumer niches provide diversification and incremental demand, especially in emerging markets adopting stricter safety standards.