
The Sparco RW-10 / RW-11 Seamless Nomex Racing Underwear Bundle combines four premium Sparco underlayer components into one complete FIA 8856-2018 certified racing underwear system. The package includes the RW-10 seamless balaclava, RW-11 seamless shirt, RW-11 seamless pants, and RW-10 compression socks.
Developed around the driver's seating position, Sparco's RW underlayers focus on lightweight construction, breathability, stretch, and reduced pressure points. The RW-11 shirt and pants also incorporate Sparco X-Cool technology to help draw heat away from the body while providing an antibacterial effect.
The Sparco RW-10 Balaclava is designed to reduce pressure points underneath a racing helmet. Its seamless construction eliminates the traditional center seam across the forehead and avoids seams around the mouth and chin area for improved comfort.
The stretchable Nomex construction provides excellent mobility while maintaining FIA 8856-2018 fire-resistant protection.
The Sparco RW-11 Shirt combines a seamless construction with ultra-soft stretch material and a compression-style fit. The garment is engineered to sit smoothly underneath a racing suit while reducing excess material and irritation.
Sparco's X-Cool Silver treatment helps draw heat away from the body's surface and provides an antibacterial effect to improve comfort during demanding driving sessions.
The RW-11 Pants use the same seamless, stretchable construction and X-Cool treatment as the matching shirt. Their compression-style fit helps reduce bunching underneath a racing suit while allowing the driver to move naturally in the cockpit.
Drivers who prefer a looser fit may want to select one size larger than their normal underlayer size.
The Sparco RW-10 Compression Socks use a unique helical construction that provides graduated Class 1 compression. Maximum pressure is applied around the ankle and gradually decreases toward the calf to support blood circulation during extended driving sessions.
This compression design is intended to help reduce muscle fatigue, improve comfort, and maintain driver focus while still providing FIA 8856-2018 fire-resistant protection.
The RW-11 shirt and pants use Sparco racing underwear sizing. Select the appropriate size and color for each garment when configuring your bundle.

The RW-11 shirt has a compression-style fit. If you prefer a more relaxed fit, consider selecting one size larger than your normal size.
The Sparco RW system is designed for drivers looking for premium FIA-certified fire-resistant underwear with an emphasis on lightweight construction, minimal seams, cooling technology, and driver comfort. Combined with an approved racing suit, helmet, gloves, and shoes, this bundle provides a complete professional racing underlayer setup.