HJC Furion helmet designed and developed through precision systems to achieve a very light structure. The thickness and density of the materials, and the distribution and shape thereof, play an important role in achieving a very light helmet. The HJC Furion helmet incorporates Venturi Dynamics technology to balance air resistance with ventilation. Wind tunnel test: HJC is one of the few brands of helmets that has its own wind tunnel testing laboratory of the latest generation to test the aerodynamics, ventilation, noise and more determining factors in the development. By adapting the technologies developed in competitive motorcycling to high-end road cycling helmets, the HJC wind tunnel testing laboratory measures the constant force within the pedaling conditions. Venturi Dynamics: To achieve the maximum results in terms of ventilation, the Bernoulli principle has been adapted to the aerodynamic models.