US Patent 11370012 Modifiable golf club head

A golf club head includes a striking face including a face center, a top portion, a sole including a leading edge and a trailing edge, and a rear side opposite the striking face. The rear side includes a channel configured to permit bending at least a portion of the sole to cause plastic deformation to change a bounce angle defined as an angle between a virtual sole line and a virtual ground plane when the golf club head is orientated in a reference position where the golf club head is addressed to hit a golf ball.