Abstract: This disclosure includes various helmets that may include: a thermoelectric element having at least one heating surface and at least one cooling surface, a thermally conductive cloth disposed within the helmet and selectively coupled to either the heating surface or the cooling surface such that the cloth is in thermal communication with the thermoelectric element, and a power source. Some of the present helmets include a switch configured to selectively activate or deactivate the thermoelectric element. Others of the present helmets include a plurality of thermally conductive fins disposed on an exterior surface of the helmet.