Simpson CarbonX Socks - SFI 3.3 Size:One Size one eyeport design with a

one eyeport design with a long bib in the front and is about 20% smaller than our adult model

Hundreds of lbs under the SFI upper neck tension threshold

heavy duty Nomex ® backed brass zipper installed with a double overlap for a more secure front opening

Mandatory in FIA Karting Championships

Simpson CarbonX Socks - SFI 3.3 Size:One Size one eyeport design with aThe CarbonX SFI 3. 3 Socks are knitted from patented CarbonX yarn and flame resistant, super washed merino wool. Reinforced toe and heel, cushioned sole. Product Description: Socks Reinforced Toe Heel Black Carbon X One Size Fits All Pair Stay safe on the track with Simpson Racing, your trusted source for high performance motorsport safety equipment since 1959. From state of the art helmets to top of the line racing suits and safety harnesses, Simpson