Tri-Ess

Society for the Second Self
NicknameTri-Ess, Tri-Sigma
PredecessorFoundation for Personality Expression, Mamselle
Formation1976 (1976)
FounderVirginia Prince, Carol Beecroft
Location
Websitewww.triess.org

Tri-Ess (Society for the Second Self) is an international educational, social, and support group for heterosexual cross-dressers, their partners, and their families.