  The classical Wilson loop is the gauge-invariant trace of the parallel
transport around a closed path with respect to a connection on a vector bundle
over a smooth manifold. We build a precise mathematical model of the super
Wilson loop, an extension introduced by Mason-Skinner and Caron-Huot, by
endowing the objects occurring with auxiliary Gra{\ss}mann generators coming
from S-points. A key feature of our model is a supergeometric parallel
transport, which allows for a natural notion of holonomy on a supermanifold as
a Lie group valued functor. Our main results for that theory comprise an
Ambrose-Singer theorem as well as a natural analogon of the holonomy principle.
Finally, we compare our holonomy functor with the holonomy supergroup
introduced by Galaev in the common situation of a topological point. It turns
out that both theories are different, yet related in a sense made precise.
