Patent ID: 7568984

Claim:
A hollow golf club head comprising: a face portion; a sole portion extending backward from a lower portion of said face portion to form a bottom portion of said golf club head; a crown portion extending backward from an upper portion of said face portion to form an upper portion of said golf club head; and a vibration absorbing layer in a film form composed of an elastic body on an inner surface of said crown portion, wherein said sole portion and said crown portion are configured such that a ratio of a rigidity of said sole portion to a rigidity of said crown portion is 1:0.1 to 0.8, said vibration absorbing layer has a ring shape covering an outer peripheral portion of said crown portion, said crown portion includes a thin-walled region formed on a face side of said crown portion and a thick-walled region formed on a back side of said crown portion, and said sole portion includes a thin-walled region formed on a back side of said sole portion and a thick-walled region formed on a face side of said sole portion.