Enjoy the comfort of this Ultra light S-Lab Sense T-Shirt made with Cocona fabric for breathability and odor reduction, and laser cut holes for ventilation. Featuring 37.5 technology that works to keep the optimum relative humidity in your microclimate so your body maintains an ideal core temperature, enabling you to perform better, longer. Fabrics made with 37.5 technology dry up to five times faster than similar fabrics. This technology is made with naturally derived materials so there are no harsh chemicals to irritate your skin. AdvancedSkin ActiveDry technology evaporates sweat and moisture away from your body. Material: Polyester, Elastane.