A protection helmet includes a crown provided with a frontal part and an occipital part including an inner occipital part, a neckband having an inner surface designed to be in contact with a user's head, and articulation system configured to allow passage of the neckband from a use position to a storage position of the protection helmet. In the storage position, the neckband is folded into the occipital part of the crown so that the inner surface is facing the inner occipital part of the crown.