Patent ID: 7540811

Claim:
A wood-type golf club head comprising: a body comprising a face plate positioned at a forward portion of the golf club head, a sole positioned at a bottom portion of the golf club head, wherein at least a portion of the sole has a sole thickness less than about 0.9 mm, a crown positioned at a top portion of the golf club head and a skirt positioned around a periphery of the golf club head between the sole and the crown, wherein the body defines an interior cavity; two or more weight ports formed in the body; and at least one weight having a weight mass and configured to be removably retained at least partially within one of the weight ports; a rib secured to an outer portion of at least one of the two or more weight ports and the body; wherein the head includes a golf club head center of gravity having a z-axis generally perpendicular to the ground when the head is ideally positioned, and wherein a golf club head moment of inertia about the head center of gravity z-axis multiplied by the weight mass is between about 2.5 kg 2 ·mm 2 and about 72 kg 2 ·mm 2 .