Cooling Fabrics & Materials
Revolutionizing Cooling Fabrics for Ultimate Comfort
In the world of performance fabrics, 37.5® Technology is setting new standards for comfort and innovation. Designed to optimize body temperature and moisture management, this cutting-edge textile technology is redefining how we experience activewear, outdoor gear, and even bedding. With the latest advancements in cooling fabrics, materials, and products, 37.5 Technology continues to push the boundaries of performance and sustainability.
How 37.5 Technology Works for You
37.5 Technology Enhances Cooling Performance
Moisture-Wicking at the Vapor Stage
Active Thermoregulation
The technology adapts to body heat, cooling when you’re warm and insulating when it’s cold.
Faster Drying Times
Odor Control and Longevity
37.5 Technology
Sustainability and
Long-Lasting Benefits
Beyond performance, 37.5 Technology is also eco-friendly. The use of natural volcanic minerals and activated carbon reduces dependence on synthetic materials while enhancing durability. Because the technology never washes out, garments last longer, reducing waste and promoting sustainability.
What he realized is comfort comes from balance, a balance between heat gain and heat loss. The volcanic sand was removing the sweat vapor from his skin so fast that he was continually cooled by sweat evaporation.
This was the moment of clarity, he understood that removing the sweat vapor before it turns to liquid sweat was key to comfort. While others were focused on wicking—spreading liquid sweat on fabric—he focused on reducing humidity next to skin to maximize evaporative cooling. And it turned out by enhancing comfort human performance was increased by reducing core temperature buildup. Now you can experience the same phenomena when wearing apparel and footwear made with 37.5 Technology.
Newest 37.5 Technology Products on the Market
Adidas ClimaCool Performance Wear – Incorporates 37.5 fabric for enhanced breathability during workouts.
Carhartt Force Extremes Workwear – Designed for workers in demanding conditions, these garments help regulate temperature and moisture.
Mission Cooling Towels and Headbands – Ideal for athletes and outdoor enthusiasts, providing instant cooling when activated with water.
Sleep Number Performance Bedding – Mattresses and sheets with 37.5-infused fabrics for all-night cooling.
37.5 Technology Up-Close
In a single yarn filament, you can see the 37.5 active thermoregulating particles. They are permanently embedded and will never wash out.
When you look closely at the 37.5 active particles, you can see the massive amount of surface area that each particle brings to the material. This exposed surface is what interacts with your sweat.
What is 37.5 Technology?
37.5 Technology is a patented thermoregulation system embedded into fabrics to maintain an ideal microclimate around the body. The name stems from the human body’s optimal core temperature of 37.5°C (99.5°F) and a relative humidity of 37.5%. The technology integrates active particles derived from volcanic sand and coconut shells into the fibers, which work to capture and release moisture vapor before it turns into sweat.
Partner with 37.5 Technology!
FAQs
Technology
The human body produces heat 24 hours a day. The most important way to regulate temperature is through the release of moisture vapor from the skin as sweat. The temperature regulating fabrics made with 37.5 Technology use ultra-porous minerals to massively increase the fabric’s surface area, attracting and removing this heat and moisture before it can turn into sweat. Using your body’s own energy to speed evaporation and remove humidity next to your skin, this fabric technology adapts to help you stay cooler when it’s hot and warmer when it’s cold.
Trapped moisture in your clothing, footwear or bedding is an amplifier, making hot feel hotter and cold feel colder. 37.5 Technology works with your body to adapt to its needs, keeping you in your ideal comfort zone longer.
37.5 particles absorb the infrared energy that your body naturally emits, powering the particles to either speed evaporation if you’re hot, or to help keep you warm if it’s cold. Because our temperature regulating fabrics are activated by an individual’s own infrared energy, even a cold sleeper and hot sleeper can be comfortable in the same bedding.
For example, testing at Inside Climate demonstrated a relative temperature-balancing effect of 5 – 19° F (or 3 – 12° C) when bedding products with 37.5 Technology were compared against standard bedding products. This means that you spend up to 88% longer in your ideal comfort zone when you sleep in a temperature regulating bedding system featuring 37.5 Technology.
The temperature regulating fabrics powered by 37.5 Technology have been proven in multiple studies to increase performance and keep you in your ideal comfort zone longer. Fabric property tests in a laboratory setting do not always correlate to human comfort. To test how fabrics interact with the temperature and humidity of human subjects and their relative comfort value, we test a broad range of apparel, footwear and bedding with and without 37.5 Technology.
The temperature regulating fabrics with 37.5 Technology have consistently outperformed alternatives in testing at the independent Munich-based institute Inside Climate. For example, denim with 37.5 Technology had a lower combined temperature/humidity value by up to 5.3°F compared to denim with a competing technology. And when you add more layers, you get more benefits. The clothing system was cooler by up to 12.5°F when 37.5 Technology was used in both the denim pants and briefs underneath.
The best fabric for temperature regulation can vary by environment and usage. 37.5 Technology is not only embedded in a wide variety of fabric constructions, but also insulations, foams, and laminates to provide tailored thermoregulation in apparel, footwear, bedding and more.
In independent consumer testing, users consistently prefer products with 37.5 Technology. For example, in one consumer test of insoles made with and without 37.5 Technology, 95% of users preferred the insole with 37.5 Technology for thermal management and 89% preferred the insole with 37.5 Technology for moisture management.
In a study done by scientists at the University of Colorado Boulder, thermoregulation clothing with 37.5 Technology was scientifically proven to increase athletic performance by up to 26% by reducing the increase of core temperature during activity. Proven to decrease the rate of core temperature buildup and keep you cool more effectively than wicking. Scientifically proven to increase stamina by reducing the amount of energy used to manage core temperature. Proven to increase efficiency so you use less energy to do the same amount of work. This data can be found in the peer-reviewed journal article:¹
¹ “Beneficial effects of cooling during constant power non-steady state cycling”; Homestead, E.P., Ryan, B.J., Goodrich, J.A., Byrnes, W. C.; International Journal of Sports Medicine 2017; 38: 141-149.
37.5 Technology is the only thermoregulating technology to combine natural active particles plus enhanced biodegradation and recycled yarn options. So, you do not need to choose between sustainability and performance.
