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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 hyfrophilicity 
  • More than 50% biobased content, 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
HeiQ Cool™ Image of a Person Touching a Cool Treated Fabric
Our certifications & standards:
  • Bluepass Label
  • zdhc
  • USDA certified
  • 符合大多数品牌的RSL要求

Applications

HeiQ Cool™ has a wide range of applications. 

  • Casual wear

  • Sportswear & activewear

  • Home textiles

  • 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. 

    HeiQ Cool™ Temperature Graphic
  • Frequently Asked Questions (FAQ)

    • What makes up the 50% biobased content of HeiQ Cool™?
    • Does HeiQ Cool™ require sweat to work?
    • What are the test methods available for HeiQ Cool™?
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    The 50% biobased 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.

  • 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.

    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 story
    HeiQ AMX Endura Partner Collab
    View success story
  • 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™...
    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™ 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.
    View webinar details
  • 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.
    Learn 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…
    View webinar details
  • News: HeiQ and GQ Apparel bring biobased cooling to denim in Thailand

    HeiQ and Thailand-based tech apparel brand GQ Apparel collaborate to bring innovative cooling to denim in Thailand, revolutionizing apparel with sustainable and high-performance technologies.

    HeiQ and Thailand-based tech apparel brand GQ Apparel collaborate to bring innovative cooling to denim in Thailand, revolutionizing apparel with sustainable and high-performance technologies. 

    HeiQ, a global leader in textile and materials innovation, proudly announces a strategic cooperation with GQ Apparel, a premier Thailand-based tech apparel brand. GQ Apparel enhances its denim offering with HeiQ’s advanced cooling solution, marking a significant milestone in the Southeast Asian market. GQ Apparel’s denim segment was launched this August and underscores the company’s commitment to innovation, superior textile performance, and solving consumer pain points. By integrating HeiQ’s biobased technology HeiQ Cool, the new GQ Cool Tech™ Jeans introduce a new era of denim that exceeds the expectations of modern consumers who value quality, functionality, and environmental responsibility. Thailand's traditionally hot weather makes it impractical to wear jeans as they become too warm. The localized application of HeiQ Cool in the leg zone solves this problem by providing wearers with an immediate cool sensation when putting the jeans on, and continuous cooling throughout the day. ​​The cooling technology, paired with a detailed, pain-point solving design, underwent an intense research and development process with more than 500 prototypes tested. 95% of consumers who took part in a wear trial preferred the GQ Cool Tech™ Jeans to their usual ones.​ Praised by local media for their innovative design, the jeans have become a viral sensation in Thailand, with videos showing the cooling technology amassing millions of views, likes, and shares since the launch. GQ Apparel’s and HeiQ’s partnership sets a new benchmark for the industry and aligns with both companies’ commitment to sustainability. 

    Mike Abbott, Head of HeiQ Textiles & Flooring business unit, commented: “We are thrilled to partner with GQ Apparel, a company that shares our dedication to innovation and sustainability. This unique collaboration not only strengthens our presence in the Southeast Asian market but also highlights our commitment to developing differentiating biobased solutions that set new benchmarks in the textile industry.” 

    George Hartel, Chief Commercial Officer of GQ Apparel, added: ​"At GQ Apparel, we’ve always pushed the boundaries of what’s possible in apparel by embracing technology. Our partnership with HeiQ marks another bold step in our journey to solve real-world challenges through innovation. With GQ Cool Tech™ Jeans, we’re not just setting a new standard for denim in Southeast Asia – we’re redefining comfort in a way that truly resonates with our customers. This collaboration showcases our commitment to the relentless pursuit of solutions that make life better for people living in hot climates."​

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