Incredibly light helmet! Thanks to DOUBLE IN-MOLD construction, the weight of this helmet has been reduced to just 327 g without padding! This construction has the advantage of maintaining the highest safety and comfort parameters while keeping the weight very low. The RTS system allows the size of the helmet to be adjusted along the entire circumference. The helmet has an effective thermoregulation system. Thanks to the ventilation channels between the helmet shell and the interior, which ensures a constant supply of fresh air and moisture removal, the interior is additionally made of anti-allergenic materials. The ventilation duct system is compatible with the Marker goggle ventilation system, guaranteeing always good clarity and fast evaporation of the lens. Helmet Marker Clark 143206-1