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NO.9659 SiTEX™ Birdseye Fabric|Weightless Comfort. Wellness-Infused Performance.

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Ultra-lightweight, wicking birdseye fabric powered by patented SiTEX® FIR technology—designed for sweat-dispersing comfort and active wellness in every movement.

 

  • Composition: 92% Nylon, 8% Spandex
  • Width: 58"/60"
  • Weight: 110g/y | 79gsm
  • Structure: Birdseye knit
  • Performance: Wicking, FIR thermal tech, 4-way stretch
  • Best Use: Activewear tops, base layers, performance linings, recoverywear
  • 9659

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Cool, Light, and Built to Perform — Now with Smart FIR Support


Fabric 9659 uses a birdseye knit structure and SiTEXTM FIR patented yarn, delivering ultra-light feel with functional wellness benefits.

It actively wicks sweat, keeps the body cool, and reflects 90–95% of the wearer’s far infrared energy, helping maintain optimal warmth and microcirculation during and after activity.

The result is a next-to-skin performance fabric that works as hard as your customers do—enhancing recovery, promoting comfort, and elevating fitness gear to the wellness age.




Fabric Performance Comparison — 9659 vs Standard Lightweight Performance Knit


Attribute9659 SiTEXTM Birdseye FabricGeneric Lightweight Active Knit
Weight79gsm — ultra-light90–120gsm
Moisture-WickingHigh-performanceModerate
FIR FunctionalityYes (permanent SiTEX®)None
Thermal RegulationSmart heat reflectionPassive, non-regulating
Best ForPerformance tops, FIR base layersBasic sportswear
Fabric StructureBirdseye knit — breathable + stableJersey or mesh — may lack shape

Conclusion: 9659 is ideal for performance brands focused on lightweight gear with a wellness edge—ready for both high-motion wear and recovery support.




Move Freely. Recover Smart. Wear Wellness.


With its soft touch, featherweight structure, and flexible form, Fabric 9659 empowers next-gen sportswear innovation:

  •  Perfect for high-performance tops or tanks

  • Ideal for smart base layers or compression tees

  • Use in yoga, running, cycling, or travelwear

  • Built-in FIR = wellness on the go

  • Soft and discreet enough for multi-purpose linings

This fabric is for brands that are moving beyond performance into long-term body support.



What Makes SiTEX™ Different? The Science Behind the Comfort


SiTEX™ is a FIR textile technology patented in both the U.S. and Taiwan, built directly into the fiber—not added later.

With 90–95% FIR reflectivity, it:

  • Helps stimulate blood circulation and oxygen delivery

  • Supports muscle recovery and thermal regulation

  • Remains effective after countless washes

  • Does not affect hand feel or add weight

With SiTEX™, 9659 becomes more than fabric—it becomes a wellness tool woven into your apparel line.




Hitek — Smart Textile Engineering for a Smarter Generation


At Hitek, we engineer fabrics that think, breathe, and care. From featherweight birdseye knits to FIR-powered materials like 9659, our designs enable brands to deliver not just fashion—but function, comfort, and purpose.

In an AI-driven world, fabrics must evolve. FIR gives your brand a boost with wellness-infused textiles that align with the smart, conscious lifestyle of today’s consumers.
Join the future of functional fashion.




Ready to integrate SiTEX™ wellness into your next activewear drop?


Let’s bring featherlight innovation and wellness performance to your brand.
Contact us now to request swatches, tech sheets, or OEM/ODM consultation.







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