Ancient Roman men's undergarments, or
indumentum, consisted of a simple linen loincloth
wrapped around the waist and worn day and night. This
sublicaculum or licium, as it was called,
was in early days the uniform for nobles as well as peasants,
and a man's amictus, or outer garments,were
flung over the man's bare chest. Later in the Republic, the
tunica made an important addition to men's
indumentum, but die-hard conservatives such as Cato
kept up the old habits until the twilight of the Republic.
By Imperial times even pesants wore
tunicae, and athletes were the only persons seen in public
wearing only a loincloth.
Sources: History of
Costume, Historic Costume for the Stage by Lucy
Barton, Daily Life in Ancient Rome, Jerome Carcopino