A wireless information recording medium including a reversible thermal
recording medium, a cushioning material layer provided on the reversible
thermal recording medium, an information recording section including an
information recording element and an antenna circuit configured to
receive and transmit information for the information recording element,
and a support layer configured to support the information recording
section, and provided on the cushioning material layer. The support layer
is stacked on the cushioning material layer and the cushioning material
is stacked on the reversible thermal recording medium in a step-wise
configuration.