37 5 Active Particle Fabric

37.5® Technology Fabric is an advanced performance material engineered to maintain your ideal body temperature by using active particles that capture and release moisture. It keeps you cool when it’s hot, warm when it’s cold, and dry during high activity—perfect for sportswear, outdoor, and everyday comfort. The fabric enhances breathability and dries up to five times faster than traditional materials, helping you stay fresh and comfortable longer.