[[File:Leiden University Library, 1 PER F17.jpg|thumb|leftright|250px|Short Mail shirt: Early 800-980AD<br>''(Leiden 1 “Maccabees” PER F17 c.900-950AD)'' ]]
:1. Mail shirts must extend in length to cover the user’s crotch or below, and the sleeves should cover the elbow when the arm is held straight out. (amended to allow mail shirts that come to just below the belt but do not necessarily cover the groin for events before 980AD)