LEAT offers you its GPX 5.5 - COMPOSITE V20.2 - ZEBRA off-road helmet:

Material:

• Composite fiber for impact resistance and a featherweight of 1130g +/-50
• Double-D buckle chinstrap, the safest on the market and the only one approved for competition use
• V-Foam Plus 3D multi-density EPS, designed to absorb medium to high-intensity impacts
  
• A 360º Turbine system is integrated between the EPS and the inner lining of the skullcap, absorbing low-intensity impacts and reducing rotational acceleration
• Emergency cheek foam extraction system in case of accident by medical personnel

The "+":

• Fully removable and washable interior
• Moisture-absorbing, breathable, odor-resistant Dri-Lex® interior
• Visor with Breakaway function designed to break in the event of impact
• Compatible with Leatt Neak Brace
• Suitable for hydration systems
• Optional hands-free kit.
  

Our opinion:

The helmet is lined with turbines, which are 360° moving disks constructed from an energy-absorbing material and shape.

This technology offers two key advantages: it reduces rotational acceleration of the head and brain, and it absorbs energy during concussion.