Sparco RW-4 Fire Resistant Racing Undershirt - FIA 8856-2018 Vehicle Make_Audi The SFI Rated padding has

The SFI Rated padding has been formulated and tested for maximum impact absorption

F-Renault etc

3 point design makes setting caster easier

the SPA Extreme system provides impressive fire knockdown and fire-out properties - good enough to give this system an SFI 17

The self powered unit (300+ hours via battery) can be optionally hardwired to the car and includes a protective mounting bracket

Sparco RW-4 Fire Resistant Racing Undershirt - FIA 8856-2018 Vehicle Make_Audi The SFI Rated padding hasSparco's entry level RW 4 line of underwear is optimized for both comfort and protection while maintaining a budget price. Using Sparco's classic soft touch fire resistant fabric, the regular fit undershirt is comfortable for all body types.