Metallic wood club head

A metallic wood club head of hollow outer shell structure comprises a striking face part (2), a back part (9), a crown part (3) forming the top of the back part (9) from the striking face (2), and a sole part (4) forming the bottom of the back part (9) from the striking face (2), wherein a height difference between a maximum face part height (MFH) from a sole part (4) and a back part height (BH) from the sole part (4) is within 25 mm, a height of a crown part (3) with a width of 30 to 70% of a head width from the sole part (4) is generally equal to or more than the maximum face part height (MFH), a height difference between a maximum crown part height (MCH) from the sole part (4) and a maximum face part height (MFH) from the sole part (4) is within 8 mm, a radius of curvature (R1) of the crown part (3) is substantially uniformly in the range of 100 to 1000 mm, a radius of curvature (R2) of the sole part (4) is substantially uniformly in the range of 500 to 2000 mm, and the ratio of wall thickness of the crown part (3) to that of the sole part (4) is in the range of 1.0 to 1.2.