How SiTEX® Far-Infrared Yarn Works
SiTEX® FIR Yarn is engineered with mineral-infused far-infrared technology built directly into the fiber. The textile interacts with naturally emitted body heat and operates within the 4–16 μm far-infrared wavelength range, supporting thermal comfort and functional performance during wear.
Far-Infrared Energy for Everyday Comfort
SiTEX® FIR Yarn is engineered to emit far-infrared energy across the 4–16 μm wavelength range, supporting thermal comfort and functional textile performance for everyday wear, wellness, and recovery applications.
SiTEX® FIR Performance Extends to 16 μm
Broad Far-Infrared Performance Range
✓ Broader Far-Infrared Coverage
✓ Built-In Functional Performance
✓ Durable Comfort
✓ Far-Infrared Interaction
✓ Thermal Comfort Support
✓ Relaxation & Wellness
Water Molecule Interaction
Supports FIR energy transfer.
Circulation Support
Supports circulation and everyday comfort.
Deep Relaxation
Provides gentle warmth and relaxing comfort.
Far Infrared Yarn Comparison
SiTEX® FIR Yarn combines more than 20 selected natural minerals with fiber-level integration technology to deliver durable far-infrared performance for functional textiles, performance apparel, wellness products, and recovery applications.
SiTEX® FIR Yarn vs. Surface Coating
SiTEX® integrates functional minerals directly into the fiber structure instead of applying them as a surface coating. This fiber-level far-infrared technology is designed for durable performance, consistent yarn quality, softness, breathability, and long-term textile functionality.
Blood Flow Observation Test
A visual observation of blood flow and flow velocity before and after contact with SiTEX® fabric.
Increased Blood Flow
Faster Blood Flow
