The isosorbide-based high-performance apparel fiber market is projected to grow from USD 0.5 billion in 2026 to USD 1.3 billion by 2036, at a CAGR of 10.6%. Isosorbide-Modified Polyesters will dominate with a 45.1% market share, while sportswear & performance apparel will lead the application segment with a 33.5% share.