| CPC A42B 3/127 (2013.01) [A42B 3/328 (2013.01)] | 15 Claims | 

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               1. A protective helmet comprising: 
            an outer shell; 
                an impact absorbing liner, positioned inside the outer shell; 
                a comfort liner positioned at an inner surface of the impact absorbing liner, so as to be in contact with a user's head during use of the protective helmet, the comfort liner comprising at least one cheek pad including a padding layer and a pad back plate, said at least one cheek pad being coupled to the impact absorbing liner by means of magnetic coupling means provided at the interface surface between the pad back plate and the impact absorbing liner, said magnetic coupling means comprising at least one projection, provided with a first magnetic element configured to be inserted inside at least one recessed seat in proximity of which a second magnetic element is arranged; 
                wherein the at least one recessed seat has a different size and shape with respect to said at least one projection, said at least one projection being adapted to move inside said at least one recessed seat between a first position, wherein the first magnetic element and the second magnetic element are faced to each other, so that the pad back plate is coupled to the impact absorbing liner, and a second position, wherein the first magnetic element and the second magnetic element are spaced apart, so that the pad back plate is releasable from the impact absorbing liner. 
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