I am modeling a product that has cloth/fabric in it and want the model's gemoetry to look realistic.  Is there an easy way to create the soft waves and folds that fabric products (e.g. clothing, etc) inherently contain?  For example, the arms of the hoodie below.  Is there a way to "pull" geometry and somehow mold it into this shape?  Or am I going to need lofted surfaces or something relatively sophisticated (and time consuming) like that?