A head enclosure including two complementary cover members having heating elements therein, shaped to conform to opposite sides of the users head, and including permanently connected portions covering the back of the user's neck, the margins of the cover members extending in centered relation over the crown of the user's head having flexible readily detachable fastening means which are variable in their width of attachment to adjust the cover members to the dimensions of the user's head, and including a removable and adjustable neck strap, whereby upon detaching the marginal fastener means both cover members may rest on the shoulders of the user retained by the neck back covering portions and neck strap.