A protection member which protects at least a portion of the body of a person or an animal, includes: an impact relaxing portion which is changed according to the shape of a part of the person or the animal to be mounted and absorbs an impact; a deformation suppressing member which suppresses deformation of the shape of the protection member and disperses the impact absorbed by the impact relaxing portion; and a close contact surface which is provided in at least a portion of a mounting surface of the protection member. The deformation suppressing member includes base bodies made of a material harder than the impact relaxing portion and shape defining portions made of a material harder than the base body. The base bodies are provided to be lined up along the planar direction of the protection member, and the shape defining portion is provided in at least a portion between the base bodies.