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- SFI Certified
- FIA Approved
- Alpinestars Nomex® underwear series provides a safe and comfortable layer underneath your suit, boots, and helmet
- Engineered to comply with FIA and SFI homologation regulation and is a must at all levels of auto competition Sizing Chart
Complies with FIA 8856-2000 and SFI 3.3 homologation standards
180gr 100% Nomex® construction for maximum safety
Kevlar® thread included in the fabric texture for softer feel
Flat seam construction to reduce pressure points
Interlock wave construction for enhanced comfort
Fabric stretches for a close and comfortable fit and to reduce bunching under the suit
Top has a tall collar for improved protection
