Gösch (student union)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Muetze_PJ_Burg.jpg/220px-Muetze_PJ_Burg.jpg)
Cap of the singers of St. Pauli Jena et Burgundia Breslau in Munster with jacks
A jack is a badge used by student associations in the form of a couleur ribbon attached to the hat . It can be the colors of a friendship bond, the colors of a lost bond or something similar. For example, the singers of St. Pauli Jena et Burgundia Breslau in Münster use a ribbon of wine with the colors blue-red on white as Gösch. These are the colors of the Burgundia Breslau singers, one of the founding singers of the Federation.