This US Air Force C-130 Hercules Ball Cap is fully adjustable with a Hook and Loop fastener. A GREAT looking cap with embroidery on the bill, the brim and the back of the cap. These imported caps are made of long-wearing 100% Acrylic. They are a terrific gift and will be worn with pride. Show your support for the Military with these Ball Caps. Your satisfaction is guaranteed, period. Usually ships within 3 - 5 business days.