Alpinestars ZX v4 Nomex Socks

Alpinestars ZX v4 Nomex Socks are fire-rated base layer socks built for kart racers who need reliable protection during 4 cycle racing. They suit drivers looking for compression support and comfort over long sessions in the seat.

What you get

• Nomex construction from the ZX base layer series
• Gradual compression design that wraps the foot, ankle, and calf
• Elastane fiber for stretch and freedom of movement
• Seamless build that reduces pressure points
• FIA 8856-2018 and latest SFI homologation
• Length that reaches just below the knee

Fit and use

The gradual compression wraps muscles, tendons, and ligaments in the foot, ankle, and calf. This design aids overall circulation and blood flow to the legs while helping combat fatigue during extended time on track. The socks remain lightweight and soft to the touch thanks to the elastane fiber that supports natural movement without restriction.

Seamless construction and reduced pressure points make these socks suitable for long stints in the race car. The below-knee length provides maximum coverage under racing gear, and the fire-rated Nomex material maintains protection without adding bulk or discomfort.

FAQ

Are these socks certified for racing?

Yes, they meet FIA 8856-2018 and the current SFI standard for fire protection.

How long are the socks?

They fit to just below the knee for full coverage under racing gear.

What makes the ZX v4 different from other Alpinestars socks?

The ZX v4 adds a compression wrap around the lower leg muscles while keeping the same Nomex fire rating.

Drivers who prefer flat seams may also consider the Alpinestars Race v4 Nomex Socks, which uses a different seam layout for the same FIA protection.

Sizing