The German Army produced a field cap for their soldiers that was very similar to this field cap by Mil-Tec. What Mil-Tec has done is taken the general concept, camouflage pattern, and design theory and applied it to a civilian sporting cap. What this resulted in was a military style cap that has all of the comforts that a civilian baseball cap would have.
What these field caps have over a standard baseball cap is the unique camouflage pattern and the inclusion of a stowable neck flap. When the sun is out and really beating down on you, the neck flap that comes with this hat will be truly appreciated. For times when the sun is not as extreme, you can flip the flap up into the hat and the cap takes on an appearance of a modern baseball cap.
It is cotton and polyester and thin. It says Mil Tec Duechland inside, so likely it ain't Chinese, or French Army issue. The stiff part in the bill/eyeshade seems too large for the fabric. That might prove a problem in time. Size 58 fits this large medium head.