Proof in the Science

Adjusts the Microclimate

Whether Warm…

When it's warm, cool off: Quickly absorbs and wicks moisture out, where it evaporates to keep the microclimate cooler and comfortable.

Or Cold

When it's cool, stay warmer: Creates a warm air layer to keep the microclimate between your skin and the fabric warmer and comfortable.

SORBTEK 365 provides moisture management and thermal comfort based on the following test methods and performance levels:

  • SORBTEK Vertical Wicking – 15cm within 30 minutes after 3 launders on synthetic or 12cm within 30 minutes after 3 launders on cotton rich fabrics
  • AATCC 79 – Complete absorption within 5 seconds after 3 launders
  • ASTM F1868 – Thermal resistance, CLO a min 0.50 unit Denim and Piece Dye.  100% Synthetic Bottom Wt. Fabrics min. 0.47
  • ASTM D3776 – Typical Woven fabric weights range from: a.) DENIM WOMEN 8.0 ~ 12.5 oz/yds2; b.) PIECE DYE 7 ~ 10.5 oz/yds2; c.) SYNTHETIC 100% - 5.25 ~ 7.5 oz/yds2
  • ASTM D1777 Opt1 – Typical fabric thickness range from 0.4 ~ 0.85 mm

Disclaimer: The Mill or Brand is responsible for submitting the fabric(s) for SORBTEK® 365™ testing including AATCC 197, AATCC 79, ASTM F1868, ASTM D3776 and ASTM D1777 Opt 1 along with the completed Unifi Fabric Submit. Unifi will test the submitted fabric(s) and issue the Certification accordingly. Unifi only certifies SORBTEK® 365™ based on testing performed at Unifi approved labs. Recommended Thermal Resistance Testing Facility: North Carolina State University, Center for Research on Textile Protection and Comfort (T-PACC), College of Textiles North Carolina State University, Raleigh, NC 27695-8301.

What We Offer


Recycled + Performance

We combine the highest quality recycled fiber with high-performing technologies. Ensuring the sustainability consumers expect and the performance they demand.


Performance Plus

Our leading suite of proprietary performance technologies helps you create differentiated products to win in the market. Combine them to create what’s next.

Global Solutions

Anywhere in the World

Our expanding network of manufacturing facilities, sales and sourcing initiatives enables us to deliver innovative products and enhanced service in every major textile region in the world.

Our Fabric Library

The Inspiration You Need

See textiles and fabrics made with Unifi fibers from our globally-certified mill partners. You must be an established brand, qualified designer, or buyer to gain access to the library as well as product design and valuable marketing support. 

It's easy to use, private and totally free. Apply now to access.

Business Solutions

Get in Touch

Sorbtek 365 delivers thermal comfort. Our ideas make a difference all along the supply chain. At Unifi, true innovation starts in the fiber. We'd love to show you how.

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