Polyester Fiber is used for a variety of materials, including mattress, sofa, pillows, dolls, nonwoven fabrics, automotive interiors, and many more. It is classified as either Virgin Fiber or Recycled Fiber, and is available in a rage of colors.(White, Black, etc.)1. Virgin Fiber 1) Virgin Hollow Fiber Non-Siliconized and Siliconized, 7/15D 2) Virgin Solid Regular Fiber Non-Siliconized and Siliconized, 3/7/15D3) Virgin Low Melt 4D4) Virgin Semi Dull Raw White 1.4D5) Virgin Short Cut 1.5D 6MM6)Virgin Micro Siliconized 0.7D 2. Regenerated Fiber ( Recycled Fiber )1) Regenerated Fiber, Super A / A / B Grade (Non-Siliconized/Siliconized), 6/15D 3. Colors Fiber 1) Regenerated Mixed Color Fiber, 6/15D2) Colored (Black, Beige, Grey, Green Fiber etc)4. Flame Retardant Fiber5. Ball Fiber