37.5 Technology is a temperature-controlling material that helps control the body's core temperature no matter what the activity or weather is. It is infused into apparel by names such as adidas, Mission Workshop, Tommy Bahama, Kenneth Cole, Carhartt, and more. The way that it works is simply merging fabric materials with natural activated minerals drawn from coconut shells and volcanic sand. These products are used due to its ability to absorb energy with its microporous particles and trap moisture.
It can react to humidity that forms near the skin to keep the heat locked in during cold temperatures or dissipate when suitable. 37.5 Technology got its name from its goal of keeping the body temperature at the ideal 37.5 Celsius and retaining a 37.5% relative humidity of microclimate near the skin.