37.5 Technology

Sustainability starts with products designed to last.

37.5® Technology uses volcanic minerals that are permanently embedded into fibers—meaning the technology lasts for the lifetime of the garment and won't wash out over time.

By extending product performance without compromising recyclability, 37.5® Technology helps support a more sustainable future for apparel. Plus, it's available in a variety of material options, including recycled polyester, recycled nylon, nature-based cellulose fibers, and enhanced biodegradation yarns.

Better comfort. Longer-lasting performance. Thoughtfully designed with sustainability in mind.

Learn more ➡️ https://www.thirtysevenfive.com/sustainable-materials/

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Sustainable Yarns, Fabrics & Materials | 37.5 Technology 37.5 Technology uses natural minerals to make sustainable fabrics, yarns & materials for clothing, activewear, athleisure, footwear, home goods and more.

☀️ 5 Tips for Staying Comfortable During Extreme Heat

1. Stay hydrated before you feel thirsty 💧
Your body relies on fluids to help regulate temperature. Drink water regularly, especially when spending time outdoors.

2. Dress for heat management 👕
Choose lightweight, breathable clothing that helps manage moisture and supports your body's natural cooling process.

3. Plan around peak temperatures 🌡️
Schedule outdoor activities during cooler parts of the day, like early morning or evening, when possible.

4. Take breaks and seek shade 🏖️
Give your body time to recover by stepping out of direct sunlight and taking regular rest breaks.

5. Pay attention to changing conditions 🌦️
Heat isn't just about the temperature—humidity, activity level, and time outdoors all affect how your body handles heat.

Your body is always working to maintain its ideal temperature. The right clothing can help support your natural thermoregulation when conditions get challenging. 🌡️

Explore summer comfort ➡ https://www.thirtysevenfive.com/apparel/

Temperature Regulating Clothing | 37.5 Technology 37.5 Technology powers moisture control and temperature regulating clothing for top active, outdoor, athleisure, fashion, and workwear brands.

Comfort isn’t just about what you wear—it’s about how your body feels in it over time.

That’s where 37.5® Technology makes a big difference in accessories. By managing moisture at the fiber level and supporting a more stable microclimate next to the skin, it helps maintain consistent comfort in the places that matter most—feet, hands, and head.

Because comfort is something you should feel all day, without thinking about it.

Check out accessories powered by 37.5® Technology ➡ https://www.thirtysevenfive.com/footwear-accessories/accessories/

Temperature Regulating Accessories | 37.5 Technology 37.5 Technology powers the temperature and moisture control of apparel accessories that help keep you warm when it’s cool and cool you when it’s hot.

Air travel is exhausting before you even land. Recycled air, unpredictable cabin temps, arriving stiff and drained.

What you wear on the plane matters more than most people realize.

Layers built with 37.5® Technology manage the microclimate around your body — so you land fresher and start stronger, wherever you're headed.

Invest in a better trip ▶️ https://www.thirtysevenfive.com/apparel/

Waterproof doesn’t mean much if the inside of the gear turns into a heat trap.

Instead of just blocking rain, 37.5® Technology helps manage what matters just as much—heat and humidity building up inside the garment.

When moisture v***r can’t escape efficiently, comfort drops fast. You end up damp from the inside out, even if the outside stays dry.

37.5® Technology is designed to work within the membrane system to help regulate that internal environment, keeping conditions closer to ideal so performance doesn’t fall apart when the weather gets tough.

Because staying dry isn’t just about keeping water out—it’s about keeping the system balanced on both sides of the fabric.

Humidity is often the hidden factor no one talks about.

It doesn’t just make conditions uncomfortable—it amplifies whatever you’re already feeling.
Hot becomes unbearable. Cold becomes biting. Sweat becomes persistent.

That’s why managing moisture from the inside matters just as much as blocking weather from the outside.

37.5® Technology helps speed moisture v***r transmission faster, reducing that amplified discomfort before it builds.

Because comfort isn’t just about protection from the elements—it’s about helping control the environment next to your skin.

Learn More ➡ https://www.thirtysevenfive.com/wpb/

Waterproof Breathable Membranes Membranes with 37.5® Thermoregulation Technology use natural volcanic minerals to speed moisture v***r transport by up to 38%,* removing sweat before you get uncomfortable.

You know that feeling. 3am. You're kicking off the blankets, then pulling them back five minutes later.

You're not a bad sleeper. Your bedding just wasn't built to keep up with you.

Bedding made with 37.5® Technology works with your body's own heat to help keep you in the comfort zone—all night long. No more compromises. No more choosing between too hot and too cold.

Because everyone deserves to wake up feeling like they actually slept.

Sleep innovation is evolving fast—and it’s increasingly focused on how the body actually performs during sleep, not just how a mattress or bedding feels.

Sleep Number® True Temp™ products integrate adaptive comfort systems with 37.5® Technology, designed to help you maintain an ideal microclimate throughout the night.

The idea is simple but powerful: when your bedding system helps regulate temperature and moisture around your body, you’re less likely to wake up overheated or uncomfortable—and more likely to stay in deeper, more restorative sleep stages.

It’s a shift from passive bedding to responsive sleep systems that work with your body instead of just supporting it.

Sleep isn’t just about duration—it’s about consistency, comfort, and balance across the whole night.

Shop Sleep Number products featuring 37.5® Technology > https://www.thirtysevenfive.com/partners/sleep-number/

Sleep Number Bedding | 37.5 Technology Sleep Number uses sustainable 37.5 Technology in its materials to power its temperature regulating sheets and bedding.

Lifestyle apparel isn’t just soft anymore—it’s smart.

37.5® Technology is built into everyday pieces to help manage moisture and keep comfort in check when the day gets real.

Heat. Hustle. Movement. It’s made for all of it.

Shop Lifestyle Apparel > https://www.thirtysevenfive.com/apparel/lifestyle/

Temperature Control Lifestyle Clothing | 37.5 Technology 37.5 Technology powers temperature control clothing for lifestyle, athleisure & fashion, helping to cool when it’s hot and keep you warm when it’s cold.