COMFORTABLE AMERICA CAP FOR ALL SIZE HEADS – Small / Medium: 6 – 7 1/8, Large / X-Large: 7 1/4 – 7 3/4. To get a perfect fit, use a tape measure or piece of string. Wrap around your head and above your ears where you normally wear a fitted hat. Compare above to see how your size in inches translates into a size. For comfort, if your head size falls between two sizes, we suggest you select the larger of the two. DESIGNED IN THE USA – Our patriotic apparel company is based entirely in the United States of America. We are family owned and operated, and we believe in good old fashioned American values. Pride in country, pride in self, and pride in our products. Best of all, we keep jobs in ‘MERICA! WOVEN TACTICAL PATCH & HIGHEST QUALITY MATERIALS – Our plain distressed USA operator flex fit mesh ball caps are designed, packaged, and shipped with the utmost care and attention to detail right here in the US. This low profile trucker hat is as durable as they come. HELP US GIVE BACK TO THE MILITARY PTSD FOUNDATION OF AMERICA – We proudly donate a portion of every single purchase to our favorite charity, the PTSD Foundation which aids our active duty military and veterans across all branches: Army, Navy, Air Force, Marines, and Coast Guard. Do your part in providing hope and healing for the unseen wounds of war. 100% SATISFACTION GUARANTEE – We stand behind all of our USA patriotic clothing products including our hats, shirts, flags, leggings, swim trunks, socks, and hoodies (mens or womens). If you aren’t happy with your purchase, our US-based customer care team is ready to help. With a huge selection of American-made patriot gear, we’re confident we’ll find something to suit your needs.