Sparco RW4 Long Johns
Best flame-retardant base layer for racers prioritizing comfort and safety.
Engineered for high-stakes motorsport, these fire-retardant undergarments prioritize safety without sacrificing comfort. The soft-touch fabric provides a regular fit that layers seamlessly under racing suits, meeting rigorous international standards for reliable protection on the track.
$126.00
at
Miki Marketing / Miki-Motorsports
Who it's for
- Competitive racers needing strict FIA-compliant fire protection
- Endurance drivers prioritizing comfort during long, intense stints
- Drivers operating in hot, high-pressure cockpit environments
Who should skip it
- Budget-conscious buyers seeking standard athletic base layers
- Users wanting low-maintenance, easy-care apparel
- Outdoor enthusiasts looking for general-purpose cold-weather gear
Performance breakdown
Thermal Protection
FIA 8856-2018 certification ensures top-tier safety for high-stakes track environments.
Fabric Comfort
Soft-touch Nomex material minimizes irritation during long, intense racing sessions.
Fit Versatility
Relaxed regular cut layers easily without bunching under tight racing suits.
Moisture Management
Breathable construction helps regulate body temperature inside hot, enclosed cockpits.
Durability
Robust Nomex fibers withstand repeated wash cycles and rigorous track use.
Range of Motion
Ergonomic design allows for unrestricted movement during critical steering maneuvers.
Key Specs
Material
Nomex
Fit
Regular
Certification
FIA 8856-2018
Available Sizes
Small, Medium, Large, Extra Large, 2X Large
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