Far infrared functional viscose fiber and yarn Fiber Specification: 1.5d *38mm 1.Yarn Specification: 32s, 40s, 100% viscose yarn ideal for underwear, T shirt 2. Yarn Specification: 32s, blend of 55% polyester & 45% viscose ideal for bedding fabric 3. many more yarns , can be made upon customers' requirements Far infrared ray emission rate: 0.87 (wavelength 4-16um, testing standard CAS115-2005) Other health care effects: Generating negative ions Anti bacteria Anti UV