Our Quality 3.50" x 2.25" U.S.A. made patch is of the highest known in the world today. Computerized embroidery machines & software offer the highest stitch count and quality possible. The velcro “hook” fabric (the rough part) is die cut to the emblem’s shape and then sewn to the back of the emblem. Heat Seal or Iron On, Heat sensitive backing that allows a patch to be ‘ironed on’ to a garment. Patches can be sewn on.