To provide a bat and a cap for a ball game which is of a good design and is made of a fiber-reinforced structure.

In the golf club head, a second shell member 18 having a curved surface is formed of a fiber-reinforced structure molded of a fabric impregnated with a resin or a light metal. The fabric is a low stitching fabric having a plurality of weft layers formed of a plurality of weft threads Y and a plurality of warp threads X into which weft threads Y of the weft layers are woven, in which some of the warp threads X incorporate weft threads Y of the other weft layers in place of some of weft threads Y forming the weft layers.