DESCRIZIONE
In a shield member for covering a face of a wearer and a protective cap in which the shield member is provided, image distortion is made as small as possible even when he or she sees an object through its peripheral portions of the shield member. In a shield member 5 for covering a face of a wearer installed in a cap body 3 for protecting a hear of the wearer, it is a shield member 5 formed of a transparent body or a translucent body in a curved plate-like form and gradually becoming thinner as going from its central portion to its peripheral portion.