Rothco patches label, are known for their quality workmanship. Three-dimensional design obtained a special technique of embroidery. Foil on the back label, have a purpose for improved absorption of adhesive. Heating the foil you can stick the label to the fabric without adhesives.
Do not use, heating option on materials which contain nylon or polyester.
For permanent and safe adhesion, use high-quality quick-drying glue.