Show off your pride with our US Air Force Cap. US Air Force Cap is made of soft, heavy-duty cotton. U.S. Air Force patch is front and center, on the bill the words U.S.A.F. are stitched in. On the back of the hat, the words United States Air Force are stitched and features a velcro clasp. All appliques are embroidered and have exquisite dimensional detail! Officially licensed product.