Crash helmet

A crash helmet, particularly for drivers and passengers of motor vehicles such as motorcycles, motorbikes, and the like, said crash helmet having a solid outer wall for covering the head, said wall being lined inside with means for cushioning impacts, said helmet comprising at least one air inlet provided in that helmet area over which sweeps the air and so arranged as to canalize the air inside the helmet, means to distribute the air inside the helmet and at least one opening provided in the helmet wall in that area thereof over which the air does not sweep, to let the air escape from said helmet,

• said means for cushioning impacts comprising a first layer of compressible material including expanded polystyrene, which lines the helmet inner wall and a second material layer lining said first layer, which is an open-cell foam, said means for distributing the air inside the helmet comprising a duct provided in said first material layer from said air inlet to said second material layer, the air flowing out from said duct being distributed inside the helmet through the open cells of said second material layer.