The main difference between the Alpinestars Nomex sock and the Lenzing is the thickness of the sock. The Lenzing sock is similar to traditional dress sock and the Nomex is similar to an athletic sock.
Alpinestars Nomex underwear series provides a safe and comfortable layer underneath your suit, boots, and helmet. The Nomex series complies with FIA regulations and is a must at all levels of auto competition.
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. Knee length socks are 180gr 100% Nomex for maximum safety.