Milspec Embroidered Rank Insignia Patches are perfect for military personnel and/or veterans wanting to show their hard work and dedication to the U.S. military. Measuring 2” X 2”, the specialist patch is made from rip-stop polyester/cotton material to prevent your rank patch from ripping and tearing. Certified by the Institute of Heraldry, this military rank insignia patch features a hook back for an easy and secure attachment to your uniform, operator cap, or other loop gear.