Alpinestars ZX Series socks are constructed with Lenzing FR®; an innovative natural viscose fiber that affords exceptional flame resistance and protection against heat transfer. This Formula 1 specification underwear is extremely lightweight and thin, while being incredibly soft to the touch for greatly enhanced comfort when wearing racing shoes.

 

• Certified to FIA 8856-2000 and SFI 3.3 homologation standards
• Formula 1 specification underwear, constructed using an innovative flame resistant technology developed by Alpinestars. Lenzing FR® is a special natural viscose fiber with unique thermal insulation and permanent flame resistance properties that help prevent heat stress and heat stroke.
• Special material formulation is more breathable and has better elastic properties than conventional fabrics.
• Lightweight, seamless construction ensures maximum driving comfort with minimal material encumbrance.
• Fabric construction is extremely soft to the touch ensuring a pleasant feel against the skin.