Abstract: Protective padding may be used during physical activities such as sporting activities to protect the body of a wearer. For example, a knee pad may be worn by a baseball catcher under the catcher's shin guard to protect a knee of the catcher. In some examples, the knee pad includes a foam pad defining a front surface configured to be positioned against the rigid shin guard and a back surface configured to be positioned against the knee. The foam pad may include a continuous sheet of memory foam adapted to conform to contours of the knee of the wearer during use. The knee pad may reduce or eliminate bruising and discomfort during sporting activity as compared to when the knee pad is not used.