Abstract: A sporting equipment warmer adapted to receive a first piece of sporting equipment that imparts or receives energy to another object for raising the temperature of at least a portion of the first piece of sporting equipment. The warmer includes a rechargeable, microwaveable heat source positioned within the interior chamber of the warmer. The first piece of sporting equipment is positioned within the interior chamber of the warming shell, and the heat pack provides a source of heat energy for transfer from the heat pack to the first piece of sporting equipment. The heat pack raises the temperature of the first piece of sporting equipment through convective and conductive heat transfer mechanisms. The warming shell can be sized and shaped to accommodate a specific piece of sporting equipment, and is particularly well suited for use with a baseball or softball bat, a baseball or softball, a golf club head, or a golf ball.