The Collaborative International Dictionary of English v.0.48:

Revers \Re*vers"\ (re*v[^a]r"; colloq. re*v[=e]r", re*v[~e]r"),
   n. sing & pl. [F. See Reverse, n.] (Dressmaking, Tailoring,
   etc.)
   A part turned or folded back so as to show the inside, or a
   piece put on in imitation of such a part, as the lapel of a
   coat.
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

revers
    n 1: a lapel on a woman's garment; turned back to show the
         reverse side [syn: revers, revere]