Our fabric collection is reaching new heights – we’re proud to introduce a made-to-order line crafted with exclusive 37.5® thermoregulation technology and moisture-management properties. These fabrics help regulate body temperature and keep wearers dry and comfortable. Pine Crest Fabrics is a verified supplier of fabrics made with 37.5® Technology. This premium line is ideal for high-performance apparel such as cycling, golf, hiking, outerwear, loungewear, and activewear.
About 37.5® Technology
37.5® Technology is a sustainable innovation made from naturally occurring volcanic minerals. Activated by body heat and humidity, it helps maintain thermal comfort by cooling the wearer when it’s hot and keeping them warmer when it’s cold. Whether you’re pushing through a tough workout, running intervals on a warm day, or recovering post-run, apparel made with 37.5® helps you stay comfortable and perform at your best.
How It Works
Active particles in 37.5® Technology capture the infrared (IR) energy naturally emitted by the body and use it to accelerate evaporation. This supports thermoregulation and adapts to a body’s needs, keeping a wearer cooler in the heat and warmer in the cold.
Key Benefits for Wearers
- Dynamic Thermoregulation: Helps maintain an optimal core temperature of 37.5°C and ideal relative humidity next to the skin.
- Sweat Management: Removes moisture in its vapor stage to delay visible sweat and keep a wearer drier for a long time.
- Improved Stamina: Scientifically proven to reduce the energy needed to manage core temperature, boosting athletic performance by up to 26%*.
- Sustainability: Combines natural minerals with enhanced biodegradability and recycled yarn options for an eco-conscious choice.
- Odor Control: Traps odors and releases them during laundering, helping garments stay fresher longer.
Read more about the technology on the 37.5® website.
37.5® Fabric Collection: Elevate Your Activewear
Our new collection—developed in collaboration with 37.5® Technology and our trusted manufacturing partners—is tailored for activewear brands designing for athletes, outdoor enthusiasts, or sustainable lifestyle markets. These brands seek performance-driven materials for high-sweat activities such as running, golf, tennis, and hiking. The selection includes bi-peach interlock, biodegradable nylon, tech fleece, and more, engineered to manage body temperature, regulate humidity, and remove moisture. These fabrics are OEKO-TEX® and bluesign® certified, ensuring they’re free from harmful chemicals.
Stretch Pique, with 37.5® Technology
- Content: 95% EB Nylon (37.5®), 5% Spandex
- Width: 62/63″
- Weight: 190 GSM
This biodegradable, four-way stretch fabric features humidity-regulating properties to help maintain a comfortable body temperature. The 37.5® Technology in the yarn also traps odors and releases them when laundered.
Anti-odor Soft Interlock, with 37.5® Technology
- Content: 87% 37.5® Recycled Nylon 13%, Creora® Fresh spandex
- Width: 58/59”
- Weight: 160GSM
This advanced interlock fabric for premium activewear is made from recycled nylon with 37.5® Thermoregulation technology and Creora® Fresh spandex.
This lightweight fabric is known for its thermoregulation, moisture-wicking, and anti-odor properties, which help maintain a comfortable body temperature while keeping the wearer fresh and dry during workouts, hiking, and other activities.
2×2 Rib Knit, with 37.5® Technology
- Content: 70% 37.5® Nylon, 30% Spandex
- Width: 46/47”
- Weight: 140GSM
This advanced, lightweight (140 GSM) rib fabric is ideal for premium activewear due to its ability to maintain optimal body temperature in both hot and cold conditions, while keeping garments fresh and resistant to abrasion.
Performance Interlock, with 37.5® Technology
- Content: 69% 37.5® Nylon, 31% Spandex
- Width: 55/56”
- Weight: 205GSM
This premium interlock fabric is perfect for leggings, sports bras, activewear, and fashion garments.
Fabric properties include four-way stretch, anti-odor properties (to keep garments fresh), great coverage, high UV protection, quick-dry performance, moisture-wicking (to keep the body dry), and abrasion resistance (to help garments resist rubbing or scraping).
Weightless Comfort Interlock, with 37.5® Technology
- Content: 75% 37.5® Nylon, 25% Spandex
- Width: 58/59”
- Weight: 182GSM
This lightweight (182 GSM) interlock features innovative 37.5® thermoregulation technology that helps the body maintain a comfortable temperature in both hot and cold conditions.
Additional features include four-way stretch, anti-odor properties, great coverage, high UV protection, quick-dry performance, moisture-wicking, and abrasion resistance, helping garments keep the wearer dry, comfortable, and fresh during workouts while resisting rubbing and abrasion. Ideal for activewear.
Explore all fabrics made with 37.5® Thermoregulation technology available for made-to-order in standard or custom colors.
Over 45 Years of Textile Expertise
At Pine Crest Fabrics, since 1978 we’ve sourced premium textiles for activewear, swimwear, and fashion
brands and provide full-scale support for your collection — from selecting the right fabric to customizing,
testing, printing, and delivery. Wherever your garment production is located, we help streamline logistics
and reduce costs.
We partner with over 20 knitting mills across Korea, Vietnam, North and South America, trusted fiber
manufacturers, and certification programs to support you with sustainable, high-quality garment
production.
Contact us to learn more or to request a swatch of these advanced textiles.
