Sparco Shield RW-7 line of Nomex undergarments provide the highest level of breathability, comfort and protection. When designing this line, Sparco studied the driver’s sitting position to ensure ultimate fit and comfort. Shield RW-7 uses a seamless construction with ultra-soft stretchable material with a stretch rib collar. There are two different woven materials in key areas; thin stretch Nomex for comfort and mobility as well as a double perforated Nomex for increased breathability and ultimate comfort. The minimal seams are stitched flat with thin specialized thread for added comfort. All Shield RW-7 pieces are treated with Sparco X-Cool Silver which draws heat from the body surface to cool the driver. In addition to cooling the driver, X-Cool Silver treatment has an anti-bacterial effect. The Shield RW-7 line is FIA 8856-2018 rated.