remera sparco t shirt shield rw 9 non fiaThe Shield RW 9 line of Nomex underwear provides the highest level of breathability, comfort, and protection. When designing this line, Sparco studied the rider's position to ensure maximum fit and comfort. Shield RW 9 uses a seamless construction with ultra soft stretch material. Three are two different woven materials in key areas; thin, stretchy Nomex for comfort and mobility, and a double perforated Nomex for breathability and maximum comfort.