Customizing your uniform is a cinch with the US Patriot Tactical Uniform Builder. The Propper Air Force Flame Resistant OCP Uniform Coat is made from Milliken ResQ ripstop fabric that is flame-resistant and has exceptional moisture wicking properties. This FR OCP coat is sewn to Mil-Spec FQ/PD 14-04A with an updated fold down collar and covered 2-way zipper and bi-swing back allow for additional ventilation. Authorized by the US Air Force for wear with OCP.