The Sparco RW-4 Youth Undershirt is part of the RW-4 line, designed to deliver both fire-resistant protection and all-day comfort for young drivers. Made from soft-touch interlock fabric, it provides a smooth, breathable feel while meeting the rigorous FIA 8856-2018 safety standards. This long-sleeved undershirt features a regular fit tailored for youth sizing, making it an ideal base layer for karting or junior racing. Lightweight and functional, it’s perfect for high-performance wear under race suits.
