A pad assembly comprises a padding defining first and second surfaces, and includes a first layer being resilient and accessible from the first surface and a second layer being resilient and underlying and secured to the first layer. The first and second removable sections are formed from at least one of the first and second layers and are arranged in a pattern and separated by edge clearances. Each of the first and second removable sections is tearable from the padding such that a residual portion of the removable section remains when at least one of the first and second removable sections is removed from the padding. The pad assembly may include a strap, and a substantially rigid or rigid shell connecting to the padding and strap.