Mil-Tec French Tropical Helmet White Reproduction of the Tropical French Pith Helmet in White. These pith helmets are great pieces of headwear. They have a leather chin strap at the front, as well as ventilation holes on the top and sides for the tropical weathers which ever lands you wish to explore! They have an adjustable headband, and fit a max head size of 60cm. This is an ideal costume piece and can be used either for military or to complete a more colonial explorer look.