Description Size for the helmets would be :XS: 53-54 cm, S: 55-56 cm, M: 57-58 cm, L: 59-60 cm, XL: 61-62 cm basis head measurement. Kindly refer image size chart for details.Testing includes energy attenuation, penetration resistance, chinstrap structural integrity, surface projection, rigidity test, tensile test, chin Strap Micro slip test. All above tested under 4 different conditions(Hot, Cold, Submerging, and Ambient)Double D-ring for a secure fit, detachable spoiler for streamlined presentation & stability at High Speed, tough polycarbonate material spoilerOptically correct visor, it is equipped... Size for the helmets would be :XS: 53-54 cm, S: 55-56 cm, M: 57-58 cm, L: 59-60 cm, XL: 61-62 cm basis head measurement. Kindly refer image size chart for details. Testing includes energy attenuation, penetration resistance, chinstrap structural integrity, surface projection, rigidity test, tensile test, chin Strap Micro slip test. All above tested under 4 different conditions(Hot, Cold, Submerging, and Ambient) Double D-ring for a secure fit, detachable spoiler for streamlined presentation & stability at High Speed, tough polycarbonate material spoiler Optically correct visor, it is equipped with Anti-Fog film, has quick and toolless visor change mechanism The upper air intake vent is situated to maximize air volume into the helmet interior, inhalation guard & chin curtain are incorporated, the behind outlet vent is coherent with PC Spoiler, allowing it to be stationed for optimum flow-through ventilation. Show More Description »
