Race Underwear Top RW-4

Sparco RW-4 Shirt is a premium base-layer top crafted from soft-touch interlock fabric, delivering exceptional comfort combined with advanced fire protection. Its simplified and optimized structure provides a smooth feel and a regular fit suitable for all types of drivers.

The material composition of 60% modacrylic and 40% cellulose ensures effective thermal insulation and excellent breathability. The RW-4 shirt is certified to FIA 8856-2018 and SFI 3.3 standards, meeting top-level motorsport safety requirements.

• Soft-touch interlock construction for superior comfort
• Simplified and optimized structure
• Regular fit
• Composition: 60% Modacrylic, 40% Cellulose
• FIA 8856-2018 & SFI 3.3 approved