Abstract: A golf club head that achieves high performance by improving and/or balancing physical properties and performance characteristics. The golf club heads described herein achieve an IYY at or near the allowable limit, an IXX/IYY ratio near 1, and a club head CG position that is centered relative to the club head perimeter and located at or near the loft-normal axis. The golf club head comprises one or more structures that create discretionary mass to be redistributed into a heavy weight member in an extreme rearward and soleward position, and/or a central mass pad at or near the Y?-axis.

Abstract: Embodiments of wood-type club heads comprising one or more components are described herein. The wood-type club head comprises a first, metallic component, and a second, non-metallic component. The first component comprises the load bearing structure that forms the striking face, and portions of the crown, the heel, the toe, and the sole. The second component comprises a lightweight structure that wraps around the first component to form portions of the crown, the heel, the toe, and the sole. The first component comprises the majority of the club head mass and can receive removable weights. The two-component design allows for additional discretionary mass redistribution to improve center of gravity location and moment of inertia.

Abstract: Described herein is a golf club head comprising a composite material, the golf club head further comprising: a front end having a bottom rail, a top rail, and a strikeface, the strikeface including a striking surface, a back surface, and a reinforcement element extending from the back surface of the strikeface; a rear end opposite the front end; a heel portion; a toe portion opposite the heel portion; a sole coupled to the front end along the bottom rail at a sole transition region, the sole extending toward the rear end of the golf club head and including a sole thickness, a first weight member and a second weight member, and a perimeter wall extending from the front end near the heel portion to the front end near the toe portion along the rear end of the golf club head, wherein the perimeter wall decreases in height from the front end toward the rear end of the golf club head.

Abstract: Embodiments of golf club heads comprising a face with a variable thickness to improve the durability in the club head, increase ball speed, and increase characteristic time (CT) are described herein. The face comprises thickened and thinned regions. The face includes a perimeter thickened region positioned near a perimeter of the face, a thinned region positioned inward of the perimeter thickened region toward a center of the face, and a central thickened region positioned over the center of the face. The combination of the thickened and thinned regions of the face increase ball speed and further increase or maximize CT without sacrificing durability.

Abstract: Described herein are embodiments of an iron-type golf club head comprising a rear opening and an insert. The insert either partially or fully occupies the club head interior cavity. The insert damps vibrations occurring within the club head at impact to provide a desirable sound and feel. The insert is formed of a low-density material, thereby providing a significant damping effect while also creating discretionary mass.

Abstract: A golf club head includes a resilient member extending from a sole of the club head to the crown. The resilient member has a convex, arcuate shape relative to a strike face of the club. The resilient member has a rest state prior to impact with a golf ball, in which the resilient member defines a first chord length, and a deflected state during impact with a golf ball, in which the resilient member defines a second chord length that is greater than the first chord length. The resilient member improves impact response of the strike face to allow strike face thickness to be reduced while maintaining durability of the golf club head.

Abstract: A golf club head includes a rear body having a crown member coupled to a sole member, and a front body coupled to the rear body to define a substantially hollow structure. The front body includes a strike face and a surrounding frame that extends rearward from a perimeter of the strike face. At least a portion of an outer wall of the club head comprises a thermoplastic composite having a plurality of lamina layers. The plurality of lamina layers include at least a fabric reinforced thermoplastic composite layer and a filled thermoplastic layer, and the fabric reinforced thermoplastic composite layer and the filled thermoplastic layer are directly bonded to each other without an intermediate adhesive.

Abstract: Embodiments of golf club heads with energy storage characteristics are presented herein. In some embodiments, a golf club head comprises a hollow body comprising a strikeface, a heel region, a toe region opposite the heel region, a sole, a top rail and an inflection point. The inflection point provides increase bending of the strikeface thereby providing performance enhancement over clubs without an inflection point.

Abstract: Embodiments of golf club heads having adjustable weighting systems with a plurality of discrete attachment locations capable of receiving one or more weights are described herein. The golf club heads described herein provide user adjustability of club head center of gravity to adjust ball flight while maintaining a high moment of inertia and low and back center of gravity position.

Abstract: A wood-type golf club head includes an angled weight assembly with an adjustable weight disposed within a weight channel. The adjustable weight assembly is positioned at an angle relative to a ground plane to reduce and redirect bending of the golf club head at impact. The reduction and redirection of bending decreases and redirects stress applied to the weight channel at impact to reduce resultant oscillations of the weight channel, which in turn reduces support material for the weight assembly and increases discretionary mass.

Abstract: A driver-type golf club head having a reduced strike face height and a reduced strike face thickness produces a greater golf ball launch speed while maintaining a conforming CT value. In addition, the driver-type golf club head preserves or improves the club head durability, ball flight path optimization, and forgiveness by careful club head mass distribution.

Abstract: A golf club head including a face element having a face surface, a rear surface, and a reinforcement device with a reinforcement element that extends out from the rear surface of the face element toward a rear end and away from a front end of a golf club head. The reinforcement element includes a looped rib having an outer perimeter surface and an inner perimeter surface. The face surface is nearer to the rear surface proximal to the face center than proximal to the face perimeter. The outer perimeter surface of the reinforcement element is filleted with the rear surface.

Abstract: A driver-type golf club head comprising a cube-like body shape, wherein a ratio between the body height and the body depth is between 0.5 and 0.75, and a ratio between the body height and the body width is between 0.5 and 0.75. The golf club head further comprises a mass distribution wherein a large portion of the club head mass is located within a central mass zone centered about the Y?-axis. The golf club head further comprises an Ixx and an Iyy moment of inertia, wherein and Ixx/Iyy ratio is greater than 0.8. In many embodiments, the golf club head further comprises optimized bulge and roll curvatures determined by the Ixx, Iyy, CG position, coefficient of restitution, and/or other characteristics.

Abstract: Described herein is a golf club head comprising a composite material, the golf club head further comprising: a front end having a bottom rail, a top rail, and a strikeface, the strikeface including a striking surface, a back surface, and a reinforcement element extending from the back surface of the strikeface; a rear end opposite the front end; a heel portion; a toe portion opposite the heel potion; a sole coupled to the front end along the bottom rail at a sole transition region, the sole extending toward the rear end of the golf club head and including a sole thickness, a first weight member and a second weight member, and a perimeter wall extending from the front end near the heel portion to the front end near the toe portion along the rear end of the golf club head, wherein the perimeter wall decreases in height from the front end toward the rear end of the golf club head.

Abstract: Embodiments of golf club heads comprising a face with a variable thickness to improve the durability in the club head, increase ball speed, and increase characteristic time (CT) are described herein. The face comprises thickened and thinned regions. The face includes a perimeter thickened region positioned near a perimeter of the face, a thinned region positioned inward of the perimeter thickened region toward a center of the face, and a central thickened region positioned over the center of the face. The combination of the thickened and thinned regions of the face increase ball speed and further increase or maximize CT without sacrificing durability.

Abstract: Embodiments of golf club heads with energy storage characteristics are presented herein. In some embodiments, a golf club head comprises a hollow body comprising a strikeface, a heel region, a toe region opposite the heel region, a sole, a crown, and a cavity positioned behind the strikeface on at least one of the sole and the crown. In many embodiments, the cavity comprises a front surface, and a rear surface, wherein at least a portion of the front surface extends toward the strikeface of the club head.

Abstract: Embodiments of wood-type club heads comprising one or more components are described herein. The wood-type club head comprises a first, metallic component, and a second, non-metallic component. The first component comprises the load bearing structure that forms the striking face, and portions of the crown, the heel, the toe, and the sole. The second component comprises a lightweight structure that wraps around the first component to form portions of the crown, the heel, the toe, and the sole. The first component comprises the majority of the club head mass and can receive removable weights. The two-component design allows for additional discretionary mass redistribution to improve center of gravity location and moment of inertia.

Abstract: Embodiments of golf club heads with energy storage characteristics are presented herein. In some embodiments, a golf club head comprises a hollow body comprising a strikeface, a heel region, a toe region opposite the heel region, a sole, and a crown. In many embodiments, the crown comprises an upper region comprising a top rail and a lower region. In some embodiments, a cavity is located below the top rail, is located above the lower region of the crown, and is defined at least in part by the upper and lower regions of the crown. The cavity comprises a top wall, a back wall, a bottom incline, a back cavity angle measured between the top and back walls of the cavity and at least one channel.

Abstract: A golf club head includes a rear body having a crown member coupled to a sole member, and a front body coupled to the rear body to define a substantially hollow structure. The front body includes a strike face and a surrounding frame that extends rearward from a perimeter of the strike face. At least a portion of an outer wall of the club head comprises a thermoplastic composite having a plurality of lamina layers. The plurality of lamina layers include at least a fabric reinforced thermoplastic composite layer and a filled thermoplastic layer, and the fabric reinforced thermoplastic composite layer and the filled thermoplastic layer are directly bonded to each other without an intermediate adhesive.

Abstract: Embodiments of a golf club head with a plurality of energy storage features are presented herein. In some embodiments, a golf club head comprises a body comprising a strike face, a heel region, a toe region opposite the heel region, a sole, a crown, an S-shaped channel, a chamfer spanning between a strike face and the crown, and an internal radius transition feature from the strike face to at least one of the sole or the crown.