Made with 95 Percent of recycled content Clever cooling technology that uses natural mint to maintain freshness Sun protection that meets the criteria set by The Skin Cancer Foundation HeiQ Smart Temp is an intelligent thermo-regulating techno- logy for fabrics, which is triggered by body heat to maintain optimal body temperature HeiQ Smart Temp is an intelligent thermo-regulating techno- logy for fabrics, which is triggered by body heat to maintain optimal body temperature