Thank you for reaching out. All items on our website have the description below it and in that is the sizing that the hat/cap fits. Flexible caps are 3XL/4XL and fits 8 to 8 1/2. Adjustable caps adjusts from 2XL - 4XL. The 2XL Cowboy fits 7 1/2 to size 8. I would suggest using our head measurement chart on the website. Take a good measurement of your head and then utilize the graph on that page below to see your exact head size. Don't hesitate with any questions or how we can assist you. We are in the offices M-F 9am - 4pm Cst or email me directly at [email protected] Here to help you get that right fit