Description
Fire-resistant base layers aren’t optional in high-performance racing—they’re essential safety equipment. The Simpson Carbon X Underwear Top combines SFI 3.3 certification with soft-knit comfort, so you get proven thermal protection without sacrificing mobility in the cockpit. Whether you’re running road course events or drag racing, this layer sits between you and a potential emergency, giving you one less thing to worry about when you’re focused on performance.
- SFI 3.3 certified
- CarbonX flame-resistant fabric
- Soft knit construction
- Long sleeve design
- Crew neck collar
- X-Large sizing
- Black colorway
- Sold individually






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