Sparco RW-4 Fire Resistant Racing T-Shirt Size:Small 00 jam nut for easy

00 jam nut for easy bulkhead installation

An internal

while an all-new

Mesh panels are built into the under-arms and seat area to increase ventilation

and thinner threads and flat stitching

Sparco RW-4 Fire Resistant Racing T-Shirt Size:Small 00 jam nut for easySparco's entry level RW 4 line of underwear is optimized for both comfort and protection while maintaining a budget price. Although not FIA or SFI approved due to their short sleeves, fire resistant t shirts are great for adding protection on hotter days when rated protection is not needed. Using Sparco's classic soft touch fire resistant fabric, the regular fitting shirt is comfortable for all body types and offers excellent breathability.