The sacred underclothing worn by many
Mormons as
a reminder of the covenants undertaken in the Temple as part of the
endowment ceremony. The garments are to be worn
at all times -- except during bathing, sports, and certain other activities
-- and are not to be shown to or handled by non-members.
Despite apocryphal claims that Mormons killed in various types of accidents
have suffered no injury on the parts of their bodies covered by the garments,
the Church teaches that the garments offer only spiritual and not physical
protection. I mean, what good is magical armor that doesn't cover your head?