Make it feel good
Temperature Regulation
37.5
37.5® Technology helps keep your body at the ideal core temperature of 37.5° Celsius and helps keep the microclimate next to your skin at the ideal relative humidity of 37.5%. When you’re hot, patented active particles made from volcanic sand embedded in the material remove sweat in the vapor stage before liquid sweat forms, cooling you down. When you’re cold, those same active particles trap your energy to help warm you up.
brrr°
Proven to keep you cooler. Brrr°’s patented Triple Chill Effect combines the power of cooling minerals, active wicking and rapid drying to enhance dryness and comfort while also working to reduce temperature. Best of all it is permanently integrated into the fiber and never fades or washes away.