Stilo ST5 KRT20 Composite Karting Helmet - K2020 Vehicle_Polaris while the "Fishbone" quilting is

while the "Fishbone" quilting is engineered for optimal ergonomics

Fits both Driver and Passenger seats

HJC helmet replacement shields fit all SA2005 and SA2010 HJC AR-10

Taking the QRT-R's patented

Not compatible with power sliders

Stilo ST5 KRT20 Composite Karting Helmet - K2020 Vehicle_Polaris while the "Fishbone" quilting isSharing styling with Stilo's ST5 FN series of auto racing helmets, the Stilo ST5 KRT is sure to turn heads at any karting circuit in the world. Manufactured using a strong, lightweight composite material, the ST5 KRT features the same focus on safety, comfort and function every other Stilo helmet is known for.