Carbon X Underwear Top Short Sleeve Small

The Carbon X Underwear Top Short Sleeve Small is a critical piece of safety apparel designed for drivers and mechanics who operate in high-heat or high-risk automotive environments. Whether you're behind the wheel during track days, road racing events, or working on engine modifications in a garage, this garment serves as a fire-resistant base layer that sits directly against your skin. Simpson Safety engineered this piece to provide essential thermal protection without compromising mobility or comfort during extended driving sessions or intensive mechanical work.

Built from advanced carbon-infused synthetic fibers, the Carbon X top delivers superior flame resistance and heat dissipation compared to standard cotton or polyester alternatives. The short sleeve design allows full arm mobility—critical when you're reaching into engine bays, adjusting turbo plumbing, or gripping the steering wheel during spirited driving. The tight-fitting construction minimizes bunching under racing suits or full fire suits, ensuring consistent coverage and eliminating dangerous gaps that could expose skin in an incident. At just 0.57 lbs, the Small size maintains a featherweight profile that won't add bulk or restrict movement during performance driving or precision mechanical tasks.

Professional racers, track enthusiasts, and automotive mechanics benefit most from this garment, particularly those working with turbochargers, superchargers, or high-output engine builds where underhood temperatures exceed safe limits. The Small sizing (MPN 20602S) fits drivers with smaller frames or those preferring a snug, tapered cut under their racing suit. Simpson Safety's Carbon X line is FIA-rated and meets sanctioning body requirements for competitive motorsports, making it suitable for both amateur and professional applications where fire resistance certification is mandatory or strongly recommended.