
Year-Round Comfort in Warm or Cool Weather
TruTemp365® fibers create the ideal microclimate between you and your clothes. Fabrics that use this technology work to cool you on warm days by moving moisture away from your body. Alternatively, the insulative properties help keep you warm on cool days.
Core Benefits
- Breathable moisture wicking fabrics for cool, dry comfort
- Insulative properties create a microclimate for warmth
- Combines well with other proprietary additives or finishes for additional benefits
Technology is in the yarn structure. Performance benefits and claims are based on fabric construction
Available Platforms
- Full range of REPREVE yarns in polyester filament and staple and spun fiber types
- Full range of PROFIBER yarns
- Available globally
Discover the Possibilities
TruTemp365® Year-Round Comfort in Warm or Cool Weather
Proof in the Science
Adjusts the Microclimate

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

When it's cool, stay warmer: Creates a warm air layer to keep the microclimate between your skin and the fabric warmer and comfortable.
TruTemp365® provides moisture management and thermal comfort based on the following test methods and performance levels:
- AATCC 197 Vertical Wicking: 15cm within 30 minutes after three launders on synthetic or 12cm within 30 minutes after three launders on cotton-rich fabrics
- AATCC 79: Complete absorption within five seconds after three launders
- ASTM F1868: Thermal resistance, CLO a min 0.50 unit except in 100% synthetic bottom weight fabrics min. 0.47
- ASTM D3776: Typical fabric weights range from:
- Woven denim 9.5 to 12.5oz/yds2 – CLO value min. - 0.50
- Woven piece dye 7.5 to 10.5oz/yds2 – CLO value min. - 0.50
- Woven 100% Synthetic 4.75 to 7.5oz/yds2 – CLO value min. - 0.47
- Knit 100% Synthetic: 4.5 to 8.0oz/yd2 – CLO value min. – 0.50
Disclaimer: The Mill or Brand is responsible for submitting the fabric(s) for TruTemp365® 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 TruTemp365® 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.

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.
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.


Year-Round Comfort Solutions
Get in Touch