POW * MIA Baseball Hat. Our brand of high quality work hats make you look like the pro you are. Tough heavy embroidery looks great and will take a beating even after a hard days work. This hat will make you be recognized as someone who shows support for Prisoners of War. All of our quality thick woven hats are 100% acrylic, cotton embroidered and feature profession tag on the rear Velcro adjuster. All of our occupational professional series hats are one size fits all adjustable for a perfect fit.