The Parallel Network (PN) model is the most advanced material model in the PolyUMod library. Each network in the PN model can have an isotropic or anistropic hyperelastic response in series with an isotropic or anistropic viscoplastic flow element. Each element can have temperature dependence and damage evolution. The PN model also support more than 20 different failure and damage models. We have not yet found a polymer that cannot be accurately predicted using the PN model!