Jacket Black 4X-Large SFI-1 FR Cotton

The Jacket Black 4X-Large SFI-1 FR Cotton from RJS Safety is purpose-built for personnel who operate in high-heat, flame-exposure environments—whether in motorsports, welding operations, or tactical response roles. This garment exists because standard work wear fails catastrophically when exposed to open flame or radiant heat; the SFI-1 certification ensures the jacket resists ignition and limits char propagation, protecting the wearer's skin and underlying clothing during critical seconds of escape or rescue. Designed for the 4X-Large frame, it delivers full coverage without restriction, meeting the exacting standards demanded by professionals whose safety margin is measured in seconds.

RJS Safety engineered this jacket using flame-resistant cotton constructed to SFI Foundation Specification 3.2A/1 standards—the same rating system governing racing suits and pit crew apparel. The FR cotton weave is inherently resistant to ignition; it chars rather than melts, preventing molten fabric from adhering to skin. At 2.03 lbs, the jacket balances protection with mobility—heavy enough to provide effective thermal barriers and structural integrity, yet light enough for extended wear in dynamic environments. The black colorway maintains a professional appearance while concealing operational wear, making it suitable for both civilian and uniformed service contexts.

Law enforcement tactical units, military combat support personnel, and industrial first responders benefit most from this jacket's proven flame-resistance rating. It pairs seamlessly with tactical vests, load carriers, and standard duty uniforms without compromising ventilation or ergonomics. The 4X-Large sizing accommodates larger builds and layering over body armor or base layers—critical for personnel operating in variable-temperature tactical environments where thermal protection cannot be compromised. For anyone whose operational profile includes vehicle extrication, structural fire response, or explosive ordnance work, the SFI-1 FR rating is non-negotiable; this jacket delivers that certification without unnecessary bulk.