Textile finishing for dual-action cooling
Starts cool, stays cool
HeiQ Cool™ is the world's first textile technology designed to deliver both instant contact cooling and continuous evaporative cooling for optimal well-being day and night.
It provides an immediate cool‑to‑the‑touch sensation and continues to support and regulate thermal and moisture comfort as heat and humidity build up. The technology components synergistically recharge the surface layer, ensuring a consistently cool, dry, and comfortable climate around the body.
Key benefits
- Patented dual-action cooling technology: instant and continuous cooling
- Rechargeable cool-touch effect designed for repeatable performance during use
- Measurable cooling performance with fabric surface temperature reductions of up to 3ºC (5.4ºF) under test conditions
- Compatible with all major fiber types, including natural fibers, synthetics, and blends while maintaining excellent hand-feel and hydrophilicity
- More than 50% biobased carbon content (ASTM D6866), with durable cooling performance designed for the lifetime of the textile product
- Suitable for responsible production, with bluepass, ZDHC compliant, >50% USDA certified biobased products, and alignment with most brand RSL requirements
Applications
HeiQ Cool™ has a wide range of applications.
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Casual wear
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Sportswear & activewear
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Home textiles
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The science behind HeiQ Cool™
HeiQ Cool™ starts cooling before visible perspiration by absorbing heat energy at the fabric surface thanks to PCM capsules filled with v...HeiQ Cool™ starts cooling before visible perspiration by absorbing heat energy at the fabric surface thanks to PCM capsules filled with vegetable oil. As skin temperature rises and moisture becomes present, the patented hydro-functional polymer is activated to support continuous cooling through accelerated moisture transport and evaporation. Together, these components work synergistically to maintain a consistently cool, dry, and comfortable textile microclimate, with the cooling effect naturally slowing once the skin temperature drops.
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Frequently Asked Questions (FAQ)
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What makes up the 50% biobased content of HeiQ Cool™?
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Does HeiQ Cool™ require sweat to work?
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What are the test methods available for HeiQ Cool™?
Don’t see the answer you’re looking for?Explore HeiQThe 50% biobased carbon content comes from renewable raw materials used in the phase-change component of HeiQ Cool™. These materials replace part of the fossil-based inputs with plant-derived sources, while keeping the same heat absorption and release behaviour during use.
No. The instant cooling effect works independently of moisture. Evaporative cooling becomes active once moisture is present, but the initial cooling sensation does not rely on perspiration.
HeiQ Cool™ is validated using standard textile test methods that measure both instant cooling and lasting thermal comfort. These methods quantify how the fabric absorbs, stores, and transfers heat during use, so performance can be compared across applications.
- Differential Scanning Calorimetry (DSC)*: Measures how much heat the fabric stores (J/g). This shows how the phase‑change material absorbs and retains heat as temperature rises.
- Qmax (cool-touch test)**: Measures heat flow at first contact with the skin. Higher values indicate a stronger cool-touch sensation at the moment of wear.
- Thermal Effusivity (ASTM D7984)**: Measures how quickly the fabric exchanges heat with the skin and surrounding air. Faster heat transfer increases the perceived cooling effect during wear.
Together, these methods show how HeiQ Cool™ delivers an immediate cool-touch feeling and maintains thermal comfort over time.
*Quality Assurance (QA/Quality Control (QC) test method (at cost if used for QC purpose)
** Test methods offered at cost
HeiQ Cool™ is designed to deliver an immediate cool-to-the-touch effect plus continuous evaporative cooling. HeiQ Smart Temp™ focuses on adaptive thermoregulation that responds dynamically to body heat and moisture. In simple terms, HeiQ Cool™ emphasizes instant and lasting cool sensation, while HeiQ Smart Temp™ emphasizes adaptive cooling for ultimate comfort.
HeiQ’s biotechnology platform uses nature derived polymers, prebiotic, probiotic, and postbiotic ingredients and translates natural and biological processes into scalable product technologies across textiles, home care, personal care, water, and animal care. By combining biology, chemistry, and materials science, HeiQ applies nature‑inspired mechanisms, including microbiome‑based systems, bio‑based encapsulation, and functional finishes, to deliver reliable performance across multiple industries.
Yes. Different textile finishes can be combined on the same fabric to deliver multiple effects at once. The key is formulation and process control. Finishes must be compatible and engineered to work side‑by‑side during application and remain stable during use and washing. Well‑designed combinations extend fabric functionality without changing how the textile feels or behaves in daily wear. For example, a garment can manage moisture while also reducing odour build‑up.
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Product line-up
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HeiQ Cool PRT-01
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HeiQ Cool NFL-03
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HeiQ Cool APS-01
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HeiQ Cool APC-01
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HeiQ Cool PRT-01
- Biobased thermofunctional cooling polymer.
- Provides instant cooling effect and continuous evaporative cooling in one treatment.
- Chemical basis: vegetable oil derived thermofunctional cooling polymer formulation and patented hydro-functional polymer
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HeiQ Cool NFL-03
Biobased thermofunctional cooling polymer for non-washable. Light and dark color mattress ticking
Provides instant cooling effect and continuous evaporative cooling in one treatment
Chemical basis: Vegetable-oil derived thermo-functional cooling polymer formulation and patented hydro-functional polymer
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HeiQ Cool APS-01
- Bio-based thermo-functional cooling polymer for cooling effect on synthetic fibers, ideal for apparel and bed accessories
Provides instant cooling effect and continuous evaporative cooling in one treatment
Chemical basis: Bio-based thermo-functional cooling polymer
Fiber type: Synthetic fibers & blends
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HeiQ Cool APC-01
- Bio-based thermo-functional cooling polymer for cooling effect on cellulosic fibers, ideal for apparel and bed accessories
Provides instant cooling effect and continuous evaporative cooling in one treatment
Chemical basis: Bio-based thermo-functional cooling polymer
Fiber type: Cellulosic fibers & blends
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Success story: HeiQ Cool™ & Endura
Endura makes braw cycling gear designed for ride after ride. Clothing, shoes, protection – they’ve got you covered. Whether you’re taking on trails, street, gnarmac or tarmac, this is quality, performance-focused kit for riding strong. The Endura AllTrack Rout collection is built for freedom on the bike and in yer clobber. This is gear that’s powered by HeiQ Cool™, the world’s first instant and continuous cooling technology, to keep you riding on all day adventures. Born in Scotland. Ridden worldwide.View success storyEndura makes braw cycling gear designed for ride after ride. Clothing, shoes, protection – they’ve got you covered. Whether you’re taking on trails, street, gnarmac or tarmac, this is quality, performance-focused kit for riding strong. The Endura AllTrack Rout collection is built for freedom on the bike and in yer clobber. This is gear that’s powered by HeiQ Cool™, the world’s first instant and continuous cooling technology, to keep you riding on all day adventures. Born in Scotland. Ridden worldwide.
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Webinar: Dual action cooling for textiles with HeiQ Cool™.
Learn about the world’s first textile technology to deliver both instant contact cooling and continuous evaporative cooling. Our bio-based textile technology HeiQ Cool™...View webinar detailsLearn about the world’s first textile technology to deliver both instant contact cooling and continuous evaporative cooling. Our bio-based textile technology HeiQ Cool™ achieves up to 3°C (5.4°F) cooler fabric temperatures on textiles! This exceptional cooling performance lasts for the lifetime of treated products.
We answer detailed questions about the technology and its practical application during the Q&A part of the webinar. -
Webinar: Go green! HeiQ's bio-based textile technologies.
Learn about HeiQ’s growing range of bio-based technologies ready to make textiles functional while meeting the growing demand for sustainability.View webinar detailsLearn about HeiQ’s growing range of bio-based technologies ready to make textiles functional while meeting the growing demand for sustainability. In recent years, the interest in environmentally friendly products has surged across various industries, and the textile sector is no exception. Consumers have become increasingly aware of the environmental impact associated with conventional textiles and are actively seeking alternatives that are derived from renewable resources.
We are showcasing the innovative bio-based technologies HeiQ Mint™, HeiQ Cool™, HeiQ Soft Sense™, and HeiQ Allergen Tech™, which bring an array of benefits to both apparel and home textiles.
(*Inanimate allergens such as house dust mite matter & pet allergens)
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News: CiCLO® technology expands across home textiles from market week to climate week
NEW YORK, Sept.10, 2026 - Intrinsic Advanced Materials is expanding the commercial reach of CiCLO® technology across home and hospitality textiles this September with ADVANSA and HeiQ, followed by its partnership with Lonely Whale’s Fashion the Future activation during NYC Climate Week.Read moreADVANSA and HeiQ collaborations create new opportunities for home and hospitality products as Intrinsic Advanced Materials brings the CiCLO® technology story to NYC Climate Week.
ADVANSA is introducing Suprelle® fiberfill made with CiCLO fibers, extending CiCLO technology into an established premium fiberfill portfolio designed around comfort and performance. At the same time, a collaboration with HeiQ is creating opportunities to pair CiCLO fibers with functional technologies that address specific product needs, including cooling, moisture management, freshness and allergen reduction.
Together, the developments give manufacturers, brands and retailers more ways to create products around specific consumer needs while incorporating CiCLO technology designed to help reduce microplastic fiber persistence.
Microplastic fiber pollution caused by the shedding of synthetic textiles is one of the most prevalent forms of microplastic pollution. CiCLO® technology is a patented textile ingredient integrated into polyester and nylon fibers during manufacturing. It creates pathways designed to accelerate biodegradation when microplastic fibers enter end of-life environments with moisture and microorganisms, reducing their persistence. Third-party laboratories independently test CiCLO fibers using recognized ASTM and ISO methods.
ADVANSA adds CiCLO® technology to Suprelle® fiberfill portfolioADVANSA is introducing Suprelle® fiberfill made with CiCLO® fibers for bedding, home and hospitality applications, bringing CiCLO technology into an established premium fiberfill portfolio built around comfort and performance.
The Suprelle portfolio gives product developers a range of fiberfill options designed around specific product needs, including cooling, down-like comfort, adaptable support, lasting loft and resilience, lightweight support, moisture management and recycled fiber options. This allows brands and retailers to select the comfort and performance attributes appropriate for pillows, comforters and other bedding products while incorporating CiCLO fibers.
“Our customers want fiberfill that delivers the comfort and performance consumers expect while helping support broader environmental priorities,” said Jean-Christophe Rouyer of ADVANSA. “Adding CiCLO technology gives them another way to differentiate Suprelle products without changing the core benefits of the fiberfill.”
HeiQ collaboration expands functional possibilities
Intrinsic Advanced Materials is also collaborating with Swiss materials innovator HeiQ to explore how CiCLO fibers can be paired with functional technologies across home, hospitality and apparel applications.
The collaboration gives manufacturers and brands access to a range of performance possibilities, including cooling and thermal comfort, allergen reduction, odor control and freshness, moisture management and faster drying.
Combined, the technologies create opportunities across bed linens, pillows, mattress protectors, mattress toppers, mattress ticking and apparel products. Product developers can select functionality based on application needs while incorporating CiCLO fibers designed to help reduce microplastic fiber persistence.
“Brands are looking for ways to build more functionality into products without adding complexity,” said Mike Abbott, EVP Advanced Materials and General Manager, HeiQ USA. “Combining HeiQ technologies with CiCLO fibers gives developers more flexibility to create products around the performance benefits their customers value.”
From Market Week to Climate WeekThe conversation continues during NYC Climate Week, where Intrinsic Advanced Materials is partnering with Lonely Whale’s Fashion the Future activation at PlanetHAUS, Sept. 21 and 22. The activation is open for drop-in visits from 8:30 a.m. to 4 p.m. both days. Register here.
CiCLO technology will be featured within The Fashion Stream, an educational experience that follows textiles through upstream, production and downstream stages. Positioned within the production stage, CiCLO technology illustrates how innovation introduced when synthetic fibers are made can address microplastic fiber persistence if those fibers later enter the environment.
The Market Week collaborations demonstrate CiCLO technology moving into commercially relevant products, while Fashion the Future connects that adoption to the larger challenge of microplastic fiber pollution and the role material choices can play in reducing persistence.
“CiCLO sets a new industry paradigm,” said Cheryl Smyre, vice president of Parkdale Advanced Materials. “Our collaboration with ADVANSA and HeiQ intersects highly functional chemistries and fiber performance with science to accelerate practical textile solutions. Our work with Lonely Whale's Fashion the Future amplifies awareness and represents a vital step forward in tackling the broader microplastic fiber crisis.”
About Intrinsic Advanced Materials and CiCLO® Technology
Intrinsic Advanced Materials, LLC (IAM), a joint venture between Intrinsic Textiles Group, LLC and Parkdale Advanced Materials, Inc., develops and commercializes advanced biodegradable technologies for the global textile industry, focusing on innovation and scalable solutions. Its portfolio includes award-winning CiCLO® technology, a patented textile ingredient designed to reduce microplastic fiber persistence from synthetic fibers. Commercially available through a global network of certified manufacturing partners, CiCLO technology has been adopted across home, hospitality, apparel, workwear and nonwoven applications, with products available from leading global brands and retailers including Target, Walmart, Costco, Best Western Hotels, Billabong and McDonald’s. CiCLO technology has received multiple industry and sustainability honors, including the Behind the Seams Award for Outstanding Supplier Partnership and the World Sustainability Awards.
About ADVANSA
ADVANSA is a leading European fiber supplier based in Germany and part of a global polyester group, with more than 50 years of experience in fiber innovation. The company supplies customers worldwide with a portfolio of high-tech, branded polyester fibers, including Suprelle®, its family of premium functional fiberfill solutions for home and hospitality applications. ADVANSA combines fiber expertise, research and testing with global manufacturing and supply capabilities to support manufacturers, brands and retailers in developing differentiated textile products. For more information, visit ADVANSA.
About HeiQ
HeiQ is a Swiss deep tech materials innovator that turns breakthrough science into scalable material technologies. Founded in 2005 as a spin-off from ETH Zurich, HeiQ develops advanced solutions across biotechnology, textiles and advanced materials. The company combines scientific research and application expertise with global R&D, manufacturing and distribution capabilities and works with more than 300 global brands across 60 countries. For more information, visit HeiQ.
About Lonely Whale
Lonely Whale is an ocean conservation organization advancing ocean innovation and market-based solutions to address plastic pollution and other threats facing the ocean. Founded in 2015, the organization brings together innovators, businesses and communities to help move promising solutions toward broader adoption. Its Fashion the Future program connects material innovators with brands and funding to advance solutions that address synthetic microplastic fiber and harmful chemical pollution. Lonely Whale is a fiscally sponsored program of Re:wild, a U.S. registered 501(c)(3). For more information, visit Lonely Whale.
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Unlock the power of ingredient branding with HeiQ
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