The GPX composite off-road helmets are optimized specifically for off-road racing & is extremely ventilated, even at very low speeds. Using a combination of ground-breaking 360º Turbine Technology with Armourgel® cushioning material as impact protection, it helps with brain & rotation safety & reduces the head impact at concussion level by up to 30% & the rotational acceleration to the head & brain by up to 40%. Ten turbines made from 3D molded Armourgel® are set inside the helmet & although they are flexible in their natural state, they harden upon impact, so the faster or harder you fall, the better it works. The helmet also has a 10% smaller shell, which transfers up to 20% less rotational forces to the head & brain. It is compatible with your neck brace & is equipped with a breakaway visor that reduces rotation in a crash. Features Visor with breakaway function for rotational reduction in a crash Low friction cheek pads for emergency removal Hydration ready (with optional hands-free kit) Moisture-wicking, breathable, anti-odor & washable liner (using zinc pyrithion) ECE 2205 Certified & tested Weight in size M: 1.090g +/- 50g Quattro Force Control, composite matrix reduced outer volume shell in three sizes Shell is 10% smaller, transferring up to 20% less rotational forces to the neck, head & brain 360° Turbine Technology Reduces up to 30% of head impact at concussion level Reduces up to 40% of rotational acceleration to head & brain Turbines are made from 3D molded Armourgel® that helps absorb impact forces 3D In-Molded V-Foam Multi-density, V-shaped impact foam molded to the outer shell significantly reduces G-forces transferred to the head & brain Increased absorption, slimmer & a stiffer structure than normal helmet foam Optimal Neck Brace Compatibility Specially designed helmet features & shape to take full advantage of the Leatt® neck brace design Rear hyperextension impact platform with neck brace optimized shape Maximized Ventilation Effective even at very low speeds Optimized for off-road racing