COOLCORE performance fabrics use patented three yarn construction to wick moisture away from the body and keep the garment up to 30% cooler when working in the heat Fast wicking sweat zones extend down the back and under the arms to accelerate drying in high-sweat body areas Chemical-free moisture wicking allows shirt to dry faster, reduces saturation and doesnt wash out over time UV protection helps block harmful rays from reaching the skin Durable, pilling-resistant fabric extends product life Drop tail extended back provides extra coverage when working overhead Seamless shoulders reduce discomfort from straps and harnesses Manages temperature and moisture to maximize performance