polyester Staple fiber, recycle, 1.5d*38mm,2d*51mm, hollow fiber Widly use in quilt,winter cloth,sleeping bag,pillow,cushio polyester staple fiber/hollow widely used in spin, toy ... glue non-woven ,etc.The composition are polyester.conjugated silicon or not.1.5d*38mm STAPLE FIBER2/2.5d*51mm NON-SILICON OR ... HCS7d*64mm HC HCS15d*32mm HC HCS15d*64mm HC HCS polyester staple fiber/hollow fiber