A folder made from a roll of folder material stock. The folder has a front flap having a first top edge and a first width, and a rear flap connected to said front flap by a folder bottom, the rear flap having a second top edge and a second width. A slip-resistant portion is disposed on at least one of the flaps near said first or second top edge. The folder material stock comprises paper and a polymer material. A method of making the folder includes the steps of providing folder material stock comprising polymeric material, providing embossing dies in spaced, operable, mating relationship, positioning the folder material stock appropriately in the embossing dies, applying force to at least one of the embossing dies so as to decrease the spaced relationship, and deforming the folder material stock.