Golf club head

1. A golf club head, comprising:

a body defining an interior cavity and comprising a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion of the golf club head, and at least one weight port positioned below the crown and configured to retain a weight, wherein the body has a forward portion and a rearward portion;

a face positioned at the forward portion of the body and including a striking surface, the striking surface having a golf club head origin positioned at a geometric center of the striking surface, wherein a golf club head origin coordinate system centered at the golf club head origin includes an x-axis tangential to the face and generally parallel to a ground plane when the golf club head is ideally positioned, a y-axis generally perpendicular to the x-axis and generally parallel to the ground plane when the golf club head is ideally positioned, and a z-axis perpendicular to both the x-axis and y-axis; and

at least one mass element secured to or integrally formed in the body and having a mass between approximately 3 g and approximately 23 g;

wherein:

a maximum club head depth (Dch) of the golf club head is between approximately 110 mm and approximately 130 mm;

the x-axis extends in a positive direction from the golf club head origin toward a heel portion of the golf club head, the y-axis extends in a positive direction from the golf club head origin towards the rearward portion of the body, and the z-axis extends in a positive direction from the golf club head origin towards the crown of the body;

a ratio of a moment of inertia about a golf club head center of gravity x-axis generally parallel to the x-axis of the golf club head origin coordinate system to a moment of inertia about a golf club head center of gravity z-axis generally parallel to the z-axis of the golf club head origin coordinate system, is greater than approximately 0.6;

the at least one mass element is located forward of a golf club head center of gravity and below the geometric center of the striking surface;

the moment of inertia about the golf club head center of gravity x-axis is at least 280 kg·mm 2 ;

the moment of inertia about the golf club head center of gravity z-axis is between approximately 450 kg·mm 2 and approximately 600 kg·mm 2 ; and

the at least one mass element has a coordinate on the y-axis of the golf club head origin coordinate system between about 0 mm and about 30 mm.

2. The golf club head of claim 1 , wherein:

the at least one mass element is a first mass element;

the golf club head further comprises at least a second mass element secured to or integrally formed in the body;

the second mass element has a mass between approximately 5 g and approximately 25 g; and

the second mass element has a coordinate on the y-axis of the golf club head origin coordinate system that is greater than about 90 mm, and a coordinate on the z-axis of the golf club head origin coordinate system that is between about −20 mm and about 10 mm.

3. The golf club head of claim 2 , wherein the second mass element has a coordinate on the x-axis of the golf club head origin coordinate system that is between about ‥15 mm and about 15 mm.

4. The golf club head of claim 3 , wherein the at least one weight port is proximate the second mass element.

5. The golf club head of claim 4 , further comprising at least one rib located within the interior cavity and connected to the at least one weight port.

6. The golf club head of claim 1 , wherein:

the at least one mass element is a first mass element;

the golf club head further comprises at least a second mass element secured to or integrally formed in the body;

the second mass element is located toe-ward of the golf club head center of gravity and forward of the golf club head center of gravity; and

the first mass element is located heel-ward of the golf club head center of gravity.

7. The golf club head of claim 6 , wherein the moment of inertia about the golf club head center of gravity x-axis is between approximately 330 kg·mm 2 and approximately 550 kg·mm 2 .

8. The golf club head of claim 6 , wherein at least a portion of the face comprises a composite material.

9. The golf club head of claim 1 , wherein the moment of inertia about the golf club head center of gravity x-axis is between approximately 330 kg·mm 2 and approximately 550 kg·mm 2 .

10. The golf club head of claim 9 , wherein the face has a variable thickness, the golf club head has a total club head mass between approximately 190 grams and approximately 210 grams, a maximum club head height is between approximately 55 mm and approximately 75 mm, a maximum club head width is between approximately 110 mm and approximately 130 mm, and the moment of inertia about the golf club head center of gravity z-axis is at least approximately 500 kg·mm 2 .

11. The golf club head of claim 10 , wherein the ratio of a moment of inertia about the golf club head center of gravity x-axis to the moment of inertia about the golf club head center of gravity z-axis is at least approximately 0.68, the total club head mass is no more than approximately 203 grams, and the golf club head has a center of gravity with a z-axis coordinate between approximately −8 mm and approximately 0 mm.

12. The golf club head of claim 10 , wherein the ratio of a moment of inertia about the golf club head center of gravity x-axis to the moment of inertia about the golf club head center of gravity z-axis is at least approximately 0.68, and the center of gravity of the golf club head has a y-axis coordinate between approximately 33 mm and approximately 41 mm.

13. The golf club head of claim 10 , wherein the ratio of a moment of inertia about the golf club head center of gravity x-axis to the moment of inertia about the golf club head center of gravity z-axis is at least approximately 0.7.

14. The golf club head of claim 10 , wherein the ratio of a moment of inertia about the golf club head center of gravity x-axis to the moment of inertia about the golf club head center of gravity z-axis is at least approximately 0.72.

15. The golf club head of claim 1 , further comprising at least one rib located within the interior cavity and connected to the at least one weight port.

16. The golf club head of claim 1 , wherein at least a portion of the body comprises a composite material.

17. The golf club head of claim 16 , wherein at least a portion of the face comprises a composite material.

18. A golf club head, comprising:

a body defining an interior cavity and comprising a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion of the golf club head, and at least one weight port positioned below the crown and configured to retain a weight, wherein the body has a forward portion and a rearward portion;

a face positioned at the forward portion of the body and including a striking surface, the striking surface having a golf club head origin positioned at a geometric center of the striking surface, wherein a golf club head origin coordinate system centered at the golf club head origin includes an x-axis tangential to the face and generally parallel to a ground plane when the golf club head is ideally positioned, a y-axis generally perpendicular to the x-axis and generally parallel to the ground plane when the golf club head is ideally positioned, and a z-axis perpendicular to both the x-axis and y-axis; and

a first mass element secured to or integrally formed in the body and having a mass between approximately 3 g and approximately 23 g; and

a second mass element secured to or integrally formed in the body;

wherein:

a maximum club head depth (Dch) of the golf club head is between approximately 110 mm and approximately 130 mm;

the x-axis extends in a positive direction from the golf club head origin toward a heel portion of the golf club head, the y-axis extends in a positive direction from the golf club head origin towards the rearward portion of the body, and the z-axis extends in a positive direction from the golf club head origin towards the crown of the body;

a ratio of a moment of inertia about a golf club head center of gravity x-axis generally parallel to the x-axis of the golf club head origin coordinate system to a moment of inertia about a golf club head center of gravity z-axis generally parallel to the z-axis of the golf club head origin coordinate system, is greater than approximately 0.6;

the first mass element is located forward of a golf club head center of gravity and below the geometric center of the striking surface;

the moment of inertia about the golf club head center of gravity x-axis is at least 280 kg·mm 2 ;

the moment of inertia about the golf club head center of gravity z-axis is between approximately 450 kg·mm 2 and approximately 600 kg·mm 2 ;

the first mass element has a coordinate on the y-axis of the golf club head origin coordinate system between about 0 mm and about 30 mm; and

the second mass element is located toe-ward of the golf club head center of gravity and forward of the golf club head center of gravity, and the first mass element is located heel-ward of the golf club head center of gravity.

19. The golf club head of claim 18 , further comprising at least one rib located within the interior cavity and connected to the at least one weight port.

20. The golf club head of claim 19 , wherein at least a portion of the body comprises a composite material.

21. The golf club head of claim 20 , wherein at least a portion of the face comprises a composite material.

22. The golf club head of claim 18 , wherein the moment of inertia about the golf club head center of gravity x-axis is between approximately 330 kg·mm 2 and approximately 550 kg·mm 2 .

23. A golf club head, comprising:

a body defining an interior cavity and comprising a sole positioned at a bottom portion of the golf club head, and a crown positioned at a top portion of the golf club head, wherein the body has a forward portion and a rearward portion;

a face positioned at the forward portion of the body and including a striking surface, the striking surface having a golf club head origin positioned at a geometric center of the striking surface, wherein a golf club head origin coordinate system centered at the golf club head origin includes an x-axis tangential to the face and generally parallel to a ground plane when the golf club head is ideally positioned, a y-axis generally perpendicular to the x-axis and generally parallel to the ground plane when the golf club head is ideally positioned, and a z-axis perpendicular to both the x-axis and y-axis;

a first mass element secured to or integrally formed in the body and having a mass between approximately 3 g and approximately 23 g; and

a second mass element secured to or integrally formed in the body and having a mass between approximately 5 g and approximately 25 g;

wherein:

a maximum club head depth (Dch) of the golf club head is between approximately 110 mm and approximately 130 mm;

the x-axis extends in a positive direction from the golf club head origin toward a heel portion of the golf club head, the y-axis extends in a positive direction from the golf club head origin towards the rearward portion of the body, and the z-axis extends in a positive direction from the golf club head origin towards the crown of the body;

a ratio of a moment of inertia about a golf club head center of gravity x-axis generally parallel to the x-axis of the golf club head origin coordinate system to a moment of inertia about a golf club head center of gravity z-axis generally parallel to the z-axis of the golf club head origin coordinate system, is greater than approximately 0.6;

the first mass element is located proximate the forward portion of the golf club head and forward of a golf club head center of gravity;

the second mass element is located proximate the rearward portion of the body;

the moment of inertia about the golf club head center of gravity x-axis is at least 280 kg·mm 2 ;

the moment of inertia about the golf club head center of gravity z-axis is between approximately 450 kg·mm 2 and approximately 600 kg·mm 2 ;

the second mass element has a coordinate on the y-axis of the golf club head origin coordinate system greater than about 90 mm and a coordinate on the z-axis of the golf club head origin coordinate system below the geometric center of the striking surface; and

the first mass element has a coordinate on the y-axis of the golf club head origin coordinate system between about 0 mm and about 30 mm.

24. The golf club head of claim 23 , further comprising:

at least one weight port positioned below the crown and proximate the second mass element, wherein the at least one weight port is configured to retain a weight; and

at least one rib located within the interior cavity and connected to the at least one weight port.

25. The golf club head of claim 24 , wherein at least a portion of the body comprises a composite material.

26. The golf club head of claim 25 , wherein at least a portion of the face comprises a composite material.

27. The golf club head of claim 25 , wherein the moment of inertia about the golf club head center of gravity x-axis is between approximately 330 kg·mm 2 and approximately 550 kg·mm 2 .