The ONB -Kart The ORTEMA Neck Brace, like the regular ONB but for Karting, it is made of a practically unbreakable high-performance plastic and distinguishes itself by extremely low weight. The individual height can be easily adjusted by changing the Velcro pads. The support in the back has a horseshoe shape to avoid the neck brace exerting pressure centrally on the spine. The force transmission, especially in combination with the ORTEMA Back protectors, is distributed over a larger area to avoid single pressure peaks in the vertebral bodies region. The standard color for the ONB frame is black. A functional strap system keeps the brace perfect in position. The ONB- karting comes in 4 sizes: S, M, L and XL.