OA Lodge Flaps not fully embroidered and can be Twill left (TL) or Twill Right (TR). Twill when viewed from the front, the rows of twill left appear to go up diagonally to the left and Twill right appear to go up diagonally to the right. Also there are Fine (TLS and TRS), Medium (TLM and TRM) and Course (TLR and TRR) rows made in Twill. Catalog Identifiers start with the letter “T” Worn by Order of the Arrow Members of this lodge.