Disclosed is a heat insulating cover for disposition on a heat exhaust system of a vehicle for minimizing a contact between a vehicle rider and heat released by the heat exhaust system. The heat insulating cover includes an insulating sheet and at least one covering sheet. The insulating sheet has a first surface and a second surface opposite to the first surface. The at least one covering sheet is disposed on at least one of the first surface and the second surface of the insulating sheet. The heat insulating cover is disposed on the vehicle in a manner such that a central portion of the heat insulating cover is positioned beneath a section of the vehicle (for example, a vehicle seat), with a first side portion and a second side portion of the heat insulating cover covering the heat exhaust system of the vehicle on both sides of the vehicle.