Base Layers & Socks

• Knitted from extra-plush Nomex®
• Designed to be worn under most helmets
• Single eyeport style
• Nomex Color: Black

CarbonX Ultimate Underwear is made from double jersey interlock knit comprised of a patented blend of high-performance fibers. It is inherently flame resistent, will not burn, melt, or ignite when subjected to direct flame.

• Designed to deliver the ultimate in base layer thermal protection
• TPP rating of 13 cal/cm2 and zero seconds after flame
• Lightweight, patented blend of high-performance fibers
• Double jersey interlock knit
• Long or short sleeve crew neck top
• Color: Black

Delivers Ultimate™ protection to the critical face and neck areas.

• SFI 3.3 certified, includes SFI tag
• CarbonX base layer
• Moisture wicking
• Fits any full face helmet contour; wear in or out
• Made in the USA

** Clearance Priced - While Supplies Last **

• Advanced tech base layer with Alpinestars’ innovative flame-resistant technology incorporating elastane fiber for improved engineered elasticity and high levels of comfort.
• Complies with FIA 8856-2000 homologation standard.
• Innovative and lightweight material construction offers breathability and comfort.
• Soft touch textile for feel and enhanced comfort.
• Lenzing™ FR® material is a special natural viscose fiber with unique thermal insulation and flame resistance that help prevent heat stress.

Whether you race karts or racecars, a CoolMax balaclava vented headsock can help keep your head cool and dry. At K1 Race Gear, we know firsthand what it's like to have your helmet on for a long stint at the track, which is why we are pleased to offer our customers the CoolMax Vented Balaclava headsock.

• CoolMax fibers are specially designed to draw moisture away from the body and allow air circulation for quick evaporation
• A CoolMax balaclava can not only keep your head cool and dry, but it helps keep the inside of your helmet clean as well
• Vented For Maximum Breathability
• Easy Machine Washable Fabric

Whether you race karts or racecars, a CoolMax balaclava vented headsock can help keep your head cool and dry. At K1 Race Gear, we know firsthand what it's like to have your helmet on for a long stint at the track, which is why we are pleased to offer our customers the CoolMax Vented Balaclava headsock.

• CoolMax fibers are specially designed to draw moisture away from the body and allow air circulation for quick evaporation
• A CoolMax balaclava can not only keep your head cool and dry, but it helps keep the inside of your helmet clean as well
• Vented For Maximum Breathability
• Easy Machine Washable Fabric

180 g/m² Super Lightweight Material 50% Nomex, 50% innovative viscose fibers for ultimate in weight savings, flame resistance & thermal insulation to combat heat stress and fatigue.

• Exceeds both SFI 3.3/5 and FIA 8856 homologation standards
• Minimal flat stitched seams with specialized flame resistant thread for added comfort
• Special non-chemical dry treatment to promote cooling and combat odor
• Highest level of elasticity and softness

180 g/m² Super Lightweight Material 50% Nomex, 50% innovative viscose fibers for ultimate in weight savings, flame resistance & thermal insulation to combat heat stress and fatigue.

• Exceeds both SFI 3.3/5 and FIA 8856 homologation standards
• Minimal flat stitched seams with specialized flame resistant thread for added comfort
• Special non-chemical dry treatment to promote cooling and combat odor
• Highest level of elasticity and softness

The NEW K1 FLEX Tech Layers are constructed of the highest quality blend of 100% Nomex and natural viscose fibers. This innovative material construction offers not only superior flame resistance and protection against heat transfer, but is the ultimate choice for soft, lightweight comfortable underwear. Designed and tested specifically by top pros in Rally Cross, WEC and other endurance challenge series, the K1 FLEX Tech Layers are quickly becoming the top choice of racing underwear throughout all forms of racing.

• 180 g/m² Super Lightweight Material 50% Nomex, 50% innovative viscose fibers for ultimate in weight savings, flame resistance & thermal insulation to combat heat stress and fatigue
• Exceeds both SFI 3.3/5 and FIA 8856 homologation standards
• Minimal flat stitched seams with specialized flame resistant thread for added comfort
• Special non-chemical dry treatment to promote cooling and combat odor
• Highest level of elasticity and softness Available in men's sizes Small - 2XL