Polypropylene Thermal Fabric for High-Performance Sportswear & Outdoor Apparel

OEKO-TEX certified, non-absorbent, and hypoallergenic thermal knit fabric engineered with polypropylene to regulate body temperature and support sustainable outdoor performance.

Thermal Fabric

Thermal Fabric

Thermal fabric is type of material designed to provide insulation and heat retention properties.
It's primary is to regulate body temperature by trapping heat close to the body.


HONG LI chose polypropylene for our thermal fabric because polypropylene is an extremely versatile and high-performance fabric. It is known for its suitability for the production of sports and technical clothing as well as thermal underwear. It is hypoallergenic, non-absorbent, waterproof, stain-resistant and does not absorb liquids. It can maintain body temperature and is defined as a "warm fiber".

Polypropylene comes from plastic and is easily recycled. All polypropylene is Oeko tex certified, which guarantees its sustainability in addition to being free of chemicals that can irritate your skin.

For all these reasons, polypropylene is considered a suitable thermal fabric for all types of outdoor activities.

Thermal Fabric

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Polypropylene Brushed Thermal Textile - One side fleece has the insulating properties of lightweight and quick drying
Polypropylene Brushed Thermal Textile
HL-216-4

Single sided fleece thermal fabric, use 92% polypropylene PP fiber and 8% polyurethane elastic...

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Polypropylene Brushed Knits - Polypropylene brushed knits provide warmth and softness
Polypropylene Brushed Knits
HL-242-2

PP single side brushed thermal textile Polypropylene brushed knits made of polypropylene fiber...

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Result 1 - 2 of 2

What makes polypropylene the superior fiber choice for thermal base layer manufacturing?

Polypropylene's unique combination of heat retention, non-absorbency, waterproofing, and hypoallergenic properties makes it the benchmark fiber for thermal base layers. Hong Li's OEKO-TEX certified polypropylene thermal fabric ensures your end products are both high-performing and skin-safe. Contact us today to request fabric samples and technical specifications for your next base layer collection.

Beyond performance, Hong Li's polypropylene thermal fabric is designed with sustainability at its foundation. Derived from plastic and fully recyclable, all polypropylene used by Hong Li carries OEKO-TEX certification — guaranteeing that the material is free from harmful chemicals and meets rigorous global sustainability standards. This dual commitment to functional excellence and environmental responsibility makes Hong Li's thermal fabric a preferred choice for B2B manufacturers seeking a reliable, certified, and eco-conscious material for all types of outdoor and sports applications. With over 30 years of experience in functional textile innovation, Hong Li is your trusted manufacturing partner for thermally superior, sustainable fabric solutions.