Reviews overview
This is what customers from around the world say:
Despite targeting a cooler weather, the material is fairly thin and flimsy. Also, there is a thin, black (it is black, even in the blue hat) sweatband inside (you cannot see it in the pics) that is only sewed at one side, so it will crease and bend all over the place.
It runs only in one size (and that is large), and while you can tighten it up, it will loosen quickly. It is also very deep, so it will go uncomfortably down into your forehead.